Analog

Steve Taranovich
Editor/Tech Writer
Latest design tips and clever circuit architectures that analog design engineers must have to keep up with fast-paced developments in the analog world of interface, timing, and RF advancements. Industry innovations and processes that enhance analog performance are some of the many topics to be explored in great technical depth as they happen.

Solving smart clothing design challenges with printed flexible sensor technology

As printed, flexible sensor technology becomes more advanced and readily available, it is providing a path to solving many design challenges for smart clothing. Read More...

Inspiring the next generation of potential technical talent in electronics

Industry leaders discuss talent challenges that the semiconductor industry is now facing and how to address them. Read More...

Deriving a rule of thumb

Where did the rule of thumb that the rise time of an exponential curve is 2.2 times the time constant of that rise come from? Read More...

PNI update: MEMS parking sensors

Businesses like to have a good parking space turnover in their area to help keep a steady flow of potential customers passing by their stores. Smart parking technology provides a solution to this need. Read More...

Distortion pedal circuit features low power and soft clipping

Low-power, tube-like pedal effects can now be yours with a simple JFET circuit. Read More...

MSEC keynote: Sensors will take care of us by understanding our needs

The MEMS and Sensors Executive Congress 2017 keynote predicted technology will take care of us by understanding our needs via sensor technology in the near future. Read More...

Crystal series and parallel resonances

A quartz crystal's case will be stamped with the devices' rated operating frequency, but that number is only an approximation to the real story which is that there is more than one crystal resonant frequency, even in the ideal case. Read More...

NASA growing food in space: An amazing technological feat

When future astronaut crews begin living and working at more distant destinations in space, they will need to take a little of the Earth with them in order to breathe and eat their vegetables. Read More...

What’s in store for optical biosensors? Part 2

This article looks at common noise and error sources affecting optical sensing, the current capabilities of wearable biosensors, and the future direction of optical biosensing applications. Read More...

Bang-bang photovoltaic regulator needs no magnetics

You don’t always need a sophisticated MPPT controller to extract and regulate photovoltaic power. This elegant little circuit may do just fine. Read More...

An overlay transistor cautionary tale

It's almost half a century since my overlay adventures, but eternal vigilance is mandatory. Read More...

The Pythagorean theorem: engineering applications

I was not even aware that there was such a day as Pythagorean Day until this year, but it brought to my attention some really interesting engineering applications. Read More...

Storage charge: an enemy and a friend

The effect of storage charge is that when a diode is carrying a current in its forward conduction mode, getting that current to stop flowing is a process that doesn't just happen right away. Read More...

SpaceX Hyperloop Pod Competition: design from creative young minds, Part 1

Arizona students developed an economical, sustainable, and scalable pod for the SpaceX Hyperloop transit system concept. Read More...

What’s for dinner? Cooking with a temperature sensor

The integrated temperature sensor can easily solve most of your temperature sensing woes if your problems live in the −55 to 200ºC temperature range. Read More...

A guide to using FETs for voltage controlled circuits, Part 1

This article explores several approaches for using FETs in voltage controlled circuits. Read More...

Electrostatic deflection in conformable mirrors

See how conformable mirrors can be used for satellites, telescopes, confocal microscopes, and other adaptive optics. Read More...

Module connects sensors to 12-bit oscilloscopes

Teledyne LeCroy's SAM40 adds sensor inputs to the company's HDO line of 12-bit oscilloscopes forming a complete data-acquisition system. Read More...

>> SEE ALL

LTC Design Note: Lower power op-amp: Utility sine wave

Learn how micropower parts running at 3V or less can nonetheless generate a very high purity sinewave. Read More...

LTC Design Note: Low power op-amp: Low power filter, headphone driver revisited

With great GBW:power ratio and low voltage operation, these op-amps enable many applications, including audio & headphone drive. Read More...

Hybrid PWM/R2R DAC improves on both

DAC designs allow for a seemingly endless range of incremental improvements. Here’s another you’ll like. Read More...

Double µC’s PWM frequency & resolution

Here’s a very simple way to increase PWM frequency and resolution. Read More...

LTC Design Note: Uncompromised clocking solution for 16bit 2.5Gsps DAC

System performance & phase noise depend on clock as much as DAC quality. Read More...

AM detector more sensitive than simple diode

A traditional diode RF detector has its limitations. This DI describes a simple way to overcome them. Read More...

RC oscillator generates linear triangle wave

This DI describes a novel way to generate a triangle wave. Read More...

Iterated-map circuit creates chaos

The chaotic circuit in this Design Idea can generate random numbers, demonstrate chaotic behaviour, and impress friends and colleagues. Read More...

Line receiver provides self test

Use a quad differential comparator to provide adequate self-test for systems using line receivers for differential input signals. Read More...

LTC Design Note: Accurate, fast settling analog voltages from PWM signals

A unique IC mitigates the disadvantages of PWM DACs. Read More...

LTC Design Note: Precision op-amp enables fast multiplexing at low power

A multiplexed DAQ design presents some subtle challenges, and parts selection plays a crucial role. Read More...

LTC Design Note: Robust high voltage Over-the-Top op-amps maintain high input impedance with inputs driven apart or when powered down

Learn how the innards of an “over-the-top” op-amp work (where inputs can be higher than V+), as well as related design considerations. Read More...

A faster PWM-based DAC

PWM DACs are cheap, cheerful, and slow. But this Design Idea describes a way to speed them up. Read More...

Reduce relay coil current with a reset controller IC

A new twist on reducing power when driving relays and solenoids. Read More...

Control accurate incremental voltage steps with a rotary encoder

This handy little DI circuit affords precise voltage-step control and makes a good pot replacement in many cases. Read More...

Precision programmable current source uses two ICs

Here are some programmable current source Design Ideas which make good use of precision on-chip component matching. Read More...

Programmable-gain amp achieves high gains

Roll your own PGA to get the exact high gains you need. Read More...

Modded charge pump extracts power from digital signal

At first glance, these charge pumps & voltage multiplier/inverters look conventional, but they have a trick up their sleeves. Read More...

Software PLL syncs to line using moving-average filter

A software PLL with a jitter attenuator lends itself to AC-line filtering and many other applications. Read More...

Fast, low-noise JFET amp is stable over temperature

This Design Idea combines the strong points of JFETs and CFAs to make a high-impedance amplifier that’s fast, stable over temperature, and quiet. Read More...

Single-MOSFET circuits gate & modulate

The humble discrete MOSFET shows its versatility in this Design Idea. Read More...

Read multiple switches using ADC

How the author learned to interface 8 switches using zero GPIOs. Read More...

Gain-selectable IC yields voltage-to-current converter

A voltage-to-current converter Design Idea with no discrete components and excellent specs. Read More...

LTC Design Note: Driver for 14-bit, 4.5 MSPS ADC operates over a wide gain range

Assure optimum performance by matching up ADC and input driver. Read More...

Simulate digital filters with PSpice

PSpice isn’t just for analog! This Design Idea shows it can handle digital filter simulation too. Read More...

Instrumentation amp makes an accurate transimpedance amp too

The interesting topology in this Design Idea turns a monolithic in-amp into a good transimpedance amp for photodiode or similar applications. Read More...

Schmitt trigger adapts its own thresholds

If you need to condition a widely-varying signal, a simple Schmitt won’t work, but this DI will. Read More...

Voltage indicator transitions between colours

Using a two-colour LED, this Design Idea indicates power-on and voltage level. Read More...

Linear ramp generator uses one op-amp

Get integrator-like ramps that know when to stop. Read More...

Circuit lets AGC amp hold its gain

AGC amps respond to signal level. This Design Idea allows gain to be held despite a changing level. Read More...

>> SEE ALL

mCube motion tracking innovation

Small and low power inertial sensor products could find use in unobtrusive wearable designs, including 3D motion-tracking. Read More...

Faster time-to-market clock oscillator: Easing emissions compliance for circuit designers

SiTime’s MEMS timing SiT9005 SSO is field programmable in a way that helps ensure emissions compliance. Read More...

ADC dissipates 1.55 W/channel

A 14-bit, 2.6-Gsample/s dual ADC, the AD9689 from Analog Devices enables IF/RF sampling with high speed and linearity. Read More...

Accelerometers furnish analog output

Kionix is complementing its medium-g digital offerings with the KX220 series of analog accelerometers, offering ±20 g and ±40 g ranges. Read More...

RS-485 transceiver boasts high isolation

Intersil’s ISL32741E RS-485 differential bus transceiver offers a working voltage of 1000 V RMS and reinforced isolation of 6 kV. Read More...

Digitizer/DSP analyzes RF and serial signals

The ADP7000 modules from Guzik let you capture and analyze RF/wireless signals, process data in FPGAs, and stream data to storage for offline analysis. Read More...

Transceiver teams with IO-Link sensors

Recently adopted by Omron, the MAX14827A dual transceiver from Maxim uses IO-Link sensors to provide production-line diagnostics. Read More...

IoT sensor determines air quality

An environmental sensor from Bosch Sensortec, the BME680 measures indoor air quality, pressure, humidity, and ambient air temperature. Read More...

Measure 16 temperatures, controlled online

The WebDAQ 316 from Measurement Computing lets you measure 16 thermocouple channels and includes a built-in web server. Read More...

Charge controllers handle 1 to 4 cells

Two NVDC buck-boost battery charge controllers, TI’s bq25703A and bq25700A, enable efficient charging through USB Type-C and other USB ports. Read More...

Op amp keeps power levels low

A zero-drift, 20 kHz operational amplifier, the LTC2063 from Linear Technology draws just 1.3 µA typical (2 µA maximum) on a 1.8 V supply. Read More...

Transceiver boosts ESD protection

A half-duplex RS-485/RS-422 transceiver, the LTC2862A from Linear Technology provides ±40 kV HBM and IEC Level 4 ESD protection. Read More...

USB controllers are internally protected

STMicroelectronics’ STUSB4710 and STUSB1602 USB Type-C port controllers provide overvoltage protection and on-chip discharge circuitry. Read More...

Transistor touts wideband operation

The AFG24S100HR5 RF power transistor from NXP operates from 1 MHz to 2700 MHz and includes input-matching for extended bandwidth performance. Read More...

DACs work with optical modules

A pair of DACs from Analog Devices, the 12-bit AD5767 and 16-bit AD5766 reduce the footprint of wired telecommunication systems. Read More...

Tri-axis sensor embeds pedometer

The K126 16-bit tri-axis digital accelerometer from Kionix integrates a step detector and step counter, yet minimizes power consumption. Read More...

Fast ADC teams with 15 GHz PLL

TI’s ADC12DJ3200 12 bit ADC delivers speeds of up to 6.4 Gsamples/s in single-channel mode and up to 3.2 Gsamples/s in dual-channel mode. Read More...

Analog or digital: Choose your oscilloscope inputs

The MSO5 series mixed-signal oscilloscopes from Tektronix provide 4, 6, or 8 flexible 12-bit analog inputs, but you can choose between analog logic inputs. Read More...

IC performs lumen maintenance

The AS7220 Smart Lighting Manager from ams uses closed-loop sensing to maintain accurate CCT and lumen output of LED lamps. Read More...

Power-stingy mic aids voice-activated devices

The VM1010 MEMS microphone from Vesper brings voice activation to battery-powered consumer devices, while drawing nearly zero power. Read More...

5G needs more bandwidth: LTC5553 mixer helps designers find it

Faster backhaul and fronthaul (basestation) links are critical to making 5G a reality. Read More...

Transceivers offer strong ESD protection

Two 50-Mbps RS-485/RS-422 transceivers, the ADM3065E and ADM3066E from Analog Devices, provide ±12 kV IEC ESD protection. Read More...

ADC driver amp spans 100 kHz to 1.4 GHz

A 15 dB gain differential amplifier, Linear Technology’s LTC6432-15 offers linearity of up to +50.3 dBm OIP3 (output third-order intercept). Read More...

RF synthesizer helps reduce system size

Packing an integrated VCO core with four separate VCOs, the ADF5356 wideband synthesizer from Analog Devices operates to 13.6 GHz. Read More...

Multisensor RFID tags read 10 meters out

Employing multiple sensors in a single tag, the PCT100 and PCT200 from Powercast have an RF operating range of -17 dBm to +20 dBm. Read More...

ADC targets GHz bandwidth applications

Based on a 28 nm CMOS process, the AD9208 dual 14 bit ADC from Analog Devices enables IF sampling of signals at up to 9 GHz (-3 dB point). Read More...

Isolation monitor protects EVs and HEVs

Sendyne’s SIM100 isolation monitor detects potential electrical hazards during the dynamic operation of high-voltage unearthed systems. Read More...

MEMS ICs monitor industrial equipment

MEMS accelerometers, the ADXL1001 and ADXL1002 from Analog Devices, allow early detection of common causes of machine failure. Read More...

Switching and protecting electronics in battery-powered systems

Battery-powered electronics pose multiple challenges to the power system engineer. Read More...

Voltage detector ensures stable operation

Useful for automotive and industrial applications, the R3152 window voltage detector from Ricoh is less sensitive to supply voltage noise. Read More...

Octal ADC has picoamp input buffers

Linear Technology’s LTC2358-18 SAR ADC eliminates the front-end signal conditioning circuitry normally required to drive unbuffered inputs. Read More...

32-bit ADC achieves 0.5 ppm INL

A dual-output 32-bit SAR ADC, the LTC2500-32 from Linear Technology produces 148 dB of dynamic range at 61 samples/s. Read More...

Differential amp cuts noise/distortion

Along with a 10 GHz gain bandwidth, the LTC6419 dual differential amplifier from Linear Technology offers low 1.1 nV input noise density. Read More...

DAC simplifies power-supply design

Packing an integrated buck/boost converter, the DAC8775 16-bit DAC from Texas Instruments operates from a single 12-V to 36-V power rail. Read More...

10-bit oscilloscopes fill gap between lower and higher models

The RTB2000 series from Rohde & Schwarz covers 70 MHz to 300 MHz with a 10-in. capacitive touchscreen display. Read More...

Intersil shrinks RS-485 transceiver

Housed in a 4×5-mm QSOP, Intersil’s ISL32704E isolated RS-485 differential-bus transceiver is as much as 70% smaller than competing devices. Read More...

Xilinx fires a 5G solution shot across the bow of RF and data converter companies

Xilinx has embedded RF-class analog technology into their 16nm, all programmable MPSoC architecture. Read More...

Motion sensor offers low-power settings

Small enough for wearable devices, STMicroelectronics’ LIS2DW12 three-axis accelerometer draws only 50 nA in standby mode. Read More...

A soft whisper heard clearly: Getting automatic speech recognition right

Consumers want to speak commands to their automobiles, mobile devices, and wearables, but ambient noise can get those messages wrong. Read More...

Chopper amp has 3 MHz gain bandwidth

A dual op amp from STMicroelectronics, the TSZ182 offers a temperature-stable input-offset voltage of 25 µV at 25°C and virtually zero drift. Read More...

Dual mixer enables 5G wireless access

Optimized for 5G MIMO receivers, the LTC5566 downconverting mixer from Linear Technology is equipped with programmable-gain IF amplifiers. Read More...

What are magneto-inductive MEMS?

In one example, magneto-inductive sensors can be used to locate available parking spaces and guide you right to them. Read More...

Fast RF SOI switches work up to 60 GHz

Peregrine’s PE42525 and PE426525 UltraCMOS 60-GHz RF SOI (silicon-on-insulator) switches boast a switching speed of just 8 ns. Read More...

Sensors enable chip-scale spectral analysis

Housed in small LGA packages, the AS7262 visible-light sensor and AS7263 NIR sensor from ams provide six calibrated spectral channels. Read More...

Current-sense amp is chopper-stabilized

The TS94033 current-sense amp from Semtech operates from a supply voltage of 4 V to 42 V to accommodate a wide range of applications. Read More...

16-bit SAR ADC packs eight channels

A no-latency SAR ADC, the LTC2320-16 from Linear Technology offers eight simultaneously sampling channels operating at 1.5 Msamples/s. Read More...

USB transceiver touts 7500-V isolation

A USB reinforced isolator, Linear Technology’s LTM2894 guards against ground-to-ground voltage differentials and large common-mode transients. Read More...

Networked spectrum analyzer delivers in real time

ThinkRF's R5500 comes in models up to 27 GHz with real-time capture bandwidth to 100 MHz, all under network control and display from a PC. Read More...

EDN Hot 100 products of 2016: Analog and Sensors

This section of EDN's Hot 100 Products of 2016 features analog ICs including transistors, transceivers, and others offering significant similar analog functions, and sensors and MEMS products. Read More...

Current-sense resistor handles 3 W

Vishay Dale’s WSK1216 Power Metal Strip current-sense resistor comes in a surface-mount 1216-size case with a Kelvin 4-terminal connection. Read More...

Isolated transceiver offers robust isolation

With 6500 VRMS reinforced isolation, Linear Technology’s LTM2885 RS-485 transceiver guards against large ground-to-ground differentials. Read More...

SPI isolators assist data converters

Intended for use with Linear Technology’s SAR ADCs and DACs, the LTM2893 and LTM2895 isolators support SPI clock speeds of up to 100 MHz. Read More...

Analog comparators cut current consumption

STMicroelectronics upgraded its TSX series of 16-V CMOS dual and quad comparators to achieve lower current consumption of 5 µA/comparator. Read More...

Dual-output reference drives up to 200 mA

Each output of the LT6658 voltage reference from Linear Technology is configurable for any voltage between 2.5 V and 6 V. Read More...

SAR ADCs ease field testing

Analog Devices’ AD400x series of 18-bit and 16-bit SAR ADCs enable test and measurement instruments to operate longer in the field. Read More...

TVS device stops ESD in its tracks

The RClamp0561Z from Semtech is a sub-200 femtofarad protection device that safeguards high-speed data interfaces from ESD and EFT. Read More...

Thin-film chip resistors boast low TCR

Offered in five case sizes, Vishay’s PLTU series of precision thin-film wraparound chip resistors provides tight TCR and tolerance. Read More...

MMBX connectors work up to 12.4 GHz

Pasternack’s small form-factor MMBX-type connectors and adapters have a maximum operating frequency of 12.4 GHz and VSWR of 1.06:1. Read More...

RS-485 transceivers meet IEC surge standards

Analog Devices’ ADM2795E and ADM3095E RS-485 transceivers are among the first to be fully certified for Level 4 EMC surge protection. Read More...

RF MEMS switch passes 14 GHz signals

The ADGM1304 quad RF MEMS switch from Analog Devices could replace electromechanical RF switches, improving reliability and saving board space. Read More...

Chip resistors withstand high surges

TT Electronics has added small 0603 size chips to the PWC and DSC series of surface-mount thick-film resistors. Read More...

Add waveforms to your PXI system

Spectrum Instrumentation's 1, 2, and 4-channel AWGs let you add analog signals to an automated test system to simulate actual conditions. Read More...

Connector maker adds USB line

CUI now offers a line of USB 2.0 and 3.0 connectors, including Type A, Type B, Micro AB, Micro B, Mini AB, and Mini B versions. Read More...

High-voltage PXI oscilloscope lets you create your own instruments

The PXIe-5164 from National Instruments adds FPGA technology to let you program your own instrument after digitizing signals. It also supports a wide range of voltage inputs. Read More...

Gamma buffer optimizes auto LCDs

Intersil’s ISL76534 14-channel programmable gamma buffer ensures consistent brightness and color matching in automotive TFT LCDs. Read More...

AFE device monitors power quality

With embedded power-quality algorithms and integrated ADCs, the ADE9000 AFE IC from Analog Devices extends the life of industrial equipment. Read More...

Zero-ohm jumper chip handles 6 A

Furnished in a surface-mount 0603-size ceramic chip, TT Electronics’ LRZ0603 zero-ohm jumper permits optional connections on PCB assemblies. Read More...

Comparator shrinks PCB space requirements

Occupying less than 1 square millimeter, the TS985 rail-to-rail comparator from STMicroelectronics operates from a supply as low as 1.8 V. Read More...

AFE device monitors heart rate

Housed in a tiny WLCSP, the AD8233 analog front-end IC from Analog Devices enables smaller, lighter, and less obtrusive cardiac monitoring. Read More...

Power detector boasts high dynamic range

Linear Technology’s LTC5596 RMS power detector has a wide RF input bandwidth of 100 MHz to 40 GHz with a linear dynamic range of 35 dB. Read More...

Automotive ICs help shrink ECU size

AEC-Q100 Grade 0 analog ICs, the LM2904WHYST dual op amp and LM2903WHYST dual comparator from STMicroelectronics, come in MiniSO8 packages. Read More...

MEMS ICs detect structural defects

Three-axis accelerometers, Analog Devices’ ADXL354 and ADXL355 enable the early detection of structural defects via wireless sensor networks. Read More...

RMS detector computes real power of an RF signal

Addressing challenges of the fast-evolving wireless network market, Linear Technology’s LTC5596 RMS power detector will give accurate power measurement of RF and microwave signals independent of modulation and waveforms. Read More...

Rx/Tx converters span 800 MHz to 4000 MHz

The HMC8100 and HMC8200 Rx/Tx converters from Analog Devices replace multiple discrete parts in microwave backhaul applications. Read More...

RF modules ease prototyping

Analog Devices’ HMCx RF and microwave modules aim to shorten the proof-of-concept phase of the design cycle and increase time to market. Read More...

Demo board packs 50-Msample/s DAC

The DC2459A demonstration circuit from Linear Technology accepts digital signals from one of several FPGA development boards. Read More...

CAN transceiver wards off ground potentials

A CAN µModule from Linear Technology, the LTM2889 separates grounds by isolating the CAN transceiver using internal inductive isolation. Read More...

RS-485 receivers occupy tiny footprint

Delivering data rates of 52 Mbps, RS-485/RS-422 receivers in the XR3318x series from Exar come in 3×3-mm, 5-pin or 6-pin TSOT23 packages. Read More...

Valencell and Jabra team up to create the most accurate wireless earbud device

Next generation earbuds are going truly wireless to provide accurate and convenient health insights during your workout. Read More...

RF front-end module outputs +20 dBm

Teamed with a TI CC1310 wireless MCU, the SKY66115-11 front-end-module from Skyworks offers long-range communications from 470 MHz to 510 MHz. Read More...

Rad-hard PLL works up to 5 GHz

Based on Peregrine Semiconductor’s UltraCMOS process, the PE97640 frational-N phase-locked loop targets commercial space applications. Read More...

Analog front-end IC linearizes sensors

A 10-channel temperature-measurement IC, the LTC2986 from Linear Technology directly digitizes thermocouples, RTDs, thermistors, and diodes. Read More...

Isolated gate drivers protect IGBT switches

Gate drivers in the Si828x series from Silicon Labs provide industrial-grade isolation with a dielectric withstand voltage of 5.0 kV RMS. Read More...

Automation platform is highly configurable

The Tibbo Project System (TPS) is an economical automation platform based on Tibbits—miniature blocks that implement specific I/O functions. Read More...

WiFi switches save board space

Skyworks’ SKY13585-679LF SPDT switch and SKY13586-678LF SP3T antenna switch integrate DC blocking capacitors. Read More...

Monolithic JFETs are alive and well

Circuit design engineers need to look closely at the benefits of using discrete active devices like the Linear Integrated Systems LSJ689 dual, P-channel JFET. Read More...

Oscilloscopes integrate with education

The TBS2000 oscilloscopes from Tektronix let educators teach directly on the instrument through Wi-Fi, Ethernet, or USB connections. Read More...

RF DAC suits diverse applications

Analog Devices’ AD9164 16-bit, 12-Gsamples/s DAC with on-chip DDS performs direct RF synthesis at 6 Gsamples/s. Read More...

32-bit SAR ADC is fast and accurate

The LTC2508-32 from Linear Technology provides both a 32-bit low-noise, digitally filtered output and a 14-bit, 1-Msample/s no-latency output. Read More...

Combo sensors fit wearable devices

Two combination accelerometer-gyro sensors, the KXG07 and KXG08 from Kionix, a subsidiary of Rohm, provide six axes of motion sensing. Read More...

Ultra-wideband I/Q demodulator improves receiver performance

The Linear Technology LTC5586 high linearity I/Q demodulator has more than 1GHz, –1dB flatness bandwidth, supporting the fast approaching 5G wireless standard. Read More...

36-V instrument amp is rad-tolerant

Intersil’s ISL70617SEH instrumentation amplifier packs an integrated differential ADC driver in its 24-lead ceramic flatpack package. Read More...

High-speed DAC tops DOCSIS 3.1

The AD9162 16-bit, 12-Gsample/s DAC from Analog Devices provides a 2.5-GHz bandwidth that exceeds the DOCSIS 3.1 standard by nearly 40%. Read More...

Fiber-optic modules form versatile transmission system

PFO-100R/T fiber-optic receivers and transmitters from Link Electronics enable 3G/HD/SD-SDI or ASI fiber-optic transmission. Read More...

Isolated amplifier minimizes error

A 7-kV reinforced isolated amplifier, the AMC1301 from Texas Instruments, provides low offset error and drift of ±200 µV at 25°C and ±3 µV/°C. Read More...

Another strong voice chimes in for remote control

Voice control is ever increasing in popularity and the technology is now moving further towards ubiquity with Texas Instrument’s voice remote control solution. Read More...

Tiny motion sensor fits wearable devices

Bosch Sensortec’s BMX160 is a 9-axis motion sensor touted as the smallest in the industry for wearable and augmented/virtual-reality devices. Read More...

Wake up and listen: Vesper quiescent-sensing MEMS device innovation

Vesper claims the industry’s only wake-on sound microphone that enables always on listening capability at practically zero power-draw. Read More...

Resolver-to-digital converter trims board space

A resolver sensor interface, the PGA411-Q1 from Texas Instruments integrates a power supply, exciter amplifier, and safety features. Read More...

I/Q modulator works up to 6 GHz

Powered by a single 2.7-V to 3.6-V supply, the LTC5589 direct conversion I/Q modulator from Linear Technology draws only 29.5 mA of current. Read More...

>> SEE ALL

Teardown: Ruggedness and flexibility keep PLCs strong in industrial

A teardown of an Allen-Bradley (Rockwell Automation) Micro850 programmable logic controller, the epitome of rugged industrial control, shows that optocouplers are the go-to technology for reliable isolation, while flexibility and easy programmability using modern languages remains key to PLC’s longevity. Read More...

Teardown: The Engineer’s Mind

For this teardown episode, the recent Mind of the Engineer Study provides a view of your perception of the engineering mind: What you think of you, and what you think others think of you. There are some surprises, some affirmations, and of course some fun twists. Read More...

Teardown: Maxwell's equations

If Maxwell's Equations were a piece of hardware, most of us would be eager to see what's inside the box. But you won't find the literary equivalent of a physical teardown because the subject is basically mathematical and as such, requires a certain amount of rigor to explain and understand. If you're willing to trade mathematical rigor for readability, this article may be the refresher you've been looking for. Read More...

Teardown: The nuances of variable-frequency drives

Get an inside view of induction-motor control by varying frequency using PWM. Read More...

The Scrubbing Bubbles power sprayer

A brilliant design costs you only pennies per spritz. Read More...

The 24V, 300W, BLDC Kollmorgen motor integrated controller

A motor mixes mechanical and electrical beauty with questionable thermal design. Read More...

The Tektronix 1101 oscilloscope-probe power supply

A mechanical design is at once a masterpiece and an expensive expedient. Read More...

Bulldog Security RS82B remote-vehicle-starter system

Microprocessor-controlled relays let you start your car 100 yards away. Read More...

The 15W Fender Squier guitar amplifier

Replacing all of the potentiometers makes a scratchy old amp sound great again. Read More...

The Schauer TB10012 battery charger

A 30-year-old nonworking battery charger makes a perfect Prying Eyes candidate—and gets a new lease on life. Read More...

>> SEE ALL

Solving smart clothing design challenges with printed flexible sensor technology

As printed, flexible sensor technology becomes more advanced and readily available, it is providing a path to solving many design challenges for smart clothing. Read More...

Distortion pedal circuit features low power and soft clipping

Low-power, tube-like pedal effects can now be yours with a simple JFET circuit. Read More...

NASA growing food in space: An amazing technological feat

When future astronaut crews begin living and working at more distant destinations in space, they will need to take a little of the Earth with them in order to breathe and eat their vegetables. Read More...

What’s in store for optical biosensors? Part 2

This article looks at common noise and error sources affecting optical sensing, the current capabilities of wearable biosensors, and the future direction of optical biosensing applications. Read More...

The Pythagorean theorem: engineering applications

I was not even aware that there was such a day as Pythagorean Day until this year, but it brought to my attention some really interesting engineering applications. Read More...

A guide to using FETs for voltage controlled circuits, Part 1

This article explores several approaches for using FETs in voltage controlled circuits. Read More...

How NASA technology helps in natural disasters

See how NASA's ISS technology benefits planet Earth before, during, and after a natural disaster by helping victims and working on advanced prediction for future prevention of such catastrophic events. Read More...

A negative feedback model for transistors with emitter/source degeneration

Emitter/source degeneration is a technique used to guard against drift in transistor parameters like beta. In addition, it helps linearize the small signal output. Read More...

How to send full-duplex data over a single twisted-pair CAT-5 cable

The world of RS-485 users is seeing a new type of interface emerging that allows for full-duplex data transmission over a single twisted-pair cable. Read More...

>> SEE ALL

Deriving a rule of thumb

Where did the rule of thumb that the rise time of an exponential curve is 2.2 times the time constant of that rise come from? Read More...

PNI update: MEMS parking sensors

Businesses like to have a good parking space turnover in their area to help keep a steady flow of potential customers passing by their stores. Smart parking technology provides a solution to this need. Read More...

MSEC keynote: Sensors will take care of us by understanding our needs

The MEMS and Sensors Executive Congress 2017 keynote predicted technology will take care of us by understanding our needs via sensor technology in the near future. Read More...

Crystal series and parallel resonances

A quartz crystal's case will be stamped with the devices' rated operating frequency, but that number is only an approximation to the real story which is that there is more than one crystal resonant frequency, even in the ideal case. Read More...

An overlay transistor cautionary tale

It's almost half a century since my overlay adventures, but eternal vigilance is mandatory. Read More...

Storage charge: an enemy and a friend

The effect of storage charge is that when a diode is carrying a current in its forward conduction mode, getting that current to stop flowing is a process that doesn't just happen right away. Read More...

Ternary DAC: Greater resolution, less bits

A base-3 DAC? Sacre bleu! Read More...

Sziklai transistors: What’s that?

There are many ways to connect two transistors, not all useful. Here’s one useful way you may never have encountered before. Read More...

HV Corotron monitors diesel emissions

Concerns over diesel emissions are nothing new. Read how some old-school tech handled measurements with the help of many, many volts. Read More...

Five technologies for building 5G

Parts of 5G are completely new while other parts are adaptations of previous technologies. Read More...

Beware the TO-220

“When is a TO-220 not a TO-220?” is your Zen exercise today. Take care this package variation doesn’t bite you. Read More...

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