ESC

Analog

Steve Taranovich
Editor
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.

Calibration means different things in different professions

Because the term "calibration" isn't listed in official government job listings, educators and job councilors might not guide people into the field. Read More...

5G base station architecture, Part 1: Evolution

I thought that now would be a good time to review, with you the EDN design audience readership, where we are at technically with the formation of 5G technology in light of the recent Brooklyn 5G Summit that took place on April 8-10, 2015 jointly organized by Nokia Networks and the NYU Wireless research Center at Polytechnic School of Engineering at New York University. Read More...

Sigma-delta ADC provides precision measurements

Maxim Integrated's MAX11214, 24-bit, 5 mW, 140 dB SNR, 32 ksample/sec delta-sigma analog-to-digital converter includes an integrated programmable gain amplifier. 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...

The Membrane Potentiometer

Membrane potentiometers have established themselves within the market over the past twenty years due to fascinating technological advancements in their field. This whitepaper introduces the advantages and disadvantages of the membrane potentiometer’s special design, and also outlines its possible applications. Read More...

A simple approach to develop SPICE macro models: Part 2

In this part 2 we will look at a different topology: a CMOS (rail-to-rail) input and output. The parameters you need to develop your macro model are the same as in part 1, as well as the three-stage topology: input, middle and rail-to-rail swing stages. Since we covered the CMOS output stage in part 1, we will focus on the input stage. Read More...

Industrial Internet of Things (IIoT) and its impact on the design of automation systems

This article looks at the system architecture for the IIoT, and focuses on the design challenges that must be solved to successfully implement IIoT-capable systems. Special attention will be given to the growing need for more and smarter sensors, MicroPLCs, and the emerging IO-Link standard. Read More...

Magnetron

The magnetron has become a household item since the introduction of microwave ovens into our kitchens. It's the magnetron that generates the microwaves that make the food hot. A brief look at what a magnetron actually consists of is worth a look. Read More...

Effect of external components tolerance on CMRR

Common Mode Rejection Ratio (CMRR) is one of the important parameters associated with ADCs and Op Amp circuits Read More...

Clocking wideband GSPS JESD204B ADCs

As high speed signal acquisition applications using multiple Analog to Digital Converters (ADCs) increase in complexity, each converter’s complementary clock solution will dictate the dynamic range and capacity of the system’s potential. Read More...

Simplified kurtosis computation detects signal interference

The statistical kurtosis operation, reinterpreted and implemented on an FPGA for this Design Idea, can detect various forms of interference in RF and other signals. Read More...

Increase range in 2-port impedance measurements

Adding series resistors or replacing VNA cables can widen bandwidth for measuring low impedances. Read More...

ZigBee and Thread move towards mesh network interoperability

On April 2, the Zigbee Alliance which consists of members consisting of silicon manufacturers, module providers and software developers on a global scale who adhere to the Zigbee standard, agreed to work together with the Thread Group whose goal is to make available the best means to control and connect products for the Smart Home. Read More...

Not your grandfather’s ADC: RF sampling ADCs offer advantages in systems design

Ever since the first commercial data converters were made, the insatiable need for faster and faster data rates meant that the data converter development had to keep pace. The latest avatar of the ADC is the RF sampling ADC with sampling speeds in the GHz realm. Read More...

TI integrated high speed SoC including Digital Front End and JESD204B

Throughout my 42 year career in electronics, I have seen the battle of portions of FPGA solutions in telecom infrastructure being replaced by Graychip’s Digital Pre-Distortion IC solution, saving power, cost and size in highly dense base station PC cards. Then, years later, emerging FPGA technology replacing such optimized IC solutions as the Graychip Digital Pre-Distorion IC as that technology leap-frogged the customized solution. Read More...

Manchester Coded Bit Streams

A look at Manchester coding of a bit stream. Read More...

>> SEE ALL

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...

Three-op-amp state-variable filter perfects the notch

There are many variants of the state-variable filter, but this one might just have the best notch output(s). Read More...

Schmitt trigger uses two transistors

Here’s a DI circuit that displays Schmitt-trigger action and can work at high current or voltage. Read More...

Monitor 15 contacts with one PIC input

Take advantage of a microcontroller’s feature set to simplify switch & contact interface. Read More...

Gated oscillator holds last level

Unlike a typical gated oscillator, this one holds its current output level when turned off. Read More...

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4-GHz op amps achieve ultralow input bias current

Two FET-input op amps with a gain bandwidth product of 4 GHz, the single LTC6268-10 and the dual LTC6269-10 from Linear Technology, provide an input bias current of 0.9 pA maximum over a temperature range of -40°C to +85°C and just 4 pA maximum over the entire operating range of -40°C to +125°C. Read More...

Drive platform supports multiple motor control topologies

The DesignDRIVE development kit provides motion control designers with a configurable platform for testing motor control topologies. Read More...

IoT-ready Smart Lighting manager ICs feature integrated daylighting, spectral management and multi-sensor support.

Ams's new Smart lighting manager ICs support network-commanded dimming, daylighting and other basic smart lighting functions as well as an autonomous mode which only relies on a local or remote host for configuration and exception handling. Unlike most of their counterparts, they have highly-accurate built-in light sensors which enable precise daylighting, lumen maintenance, and in the case of the AS7221, color tuning. In addition, the same sub-$10 solution that drives the lighting system can also serve as a low-cost platform for many other Smart Building services. Read More...

16-bit DAC boasts high spectral purity

Optimized for high-end broadband wired and wireless communications and radar applications, the LTC2000A from Linear Technology is a 16-bit, 2.7-Gsample/s DAC that offers a spurious free dynamic range (SFDR) of 80 dBc at a frequency output of 50 MHz and greater than 68 dBc SFDR from DC to 1080 MHz. Read More...

Sigma-delta ADC provides precision measurements

Maxim Integrated's MAX11214, 24-bit, 5 mW, 140 dB SNR, 32 ksample/sec delta-sigma analog-to-digital converter includes an integrated programmable gain amplifier. Read More...

Inductance-to-digital converters sport multiple channels

Texas Instruments’ LDC1614 series of inductance-to-digital converters (LDCs) comprises four devices offering two or four matched channels and 12-bit or 28-bit resolution in a compact 4x4-mm package. Read More...

Tiny real-time clock consumes only 240 nA

Furnished in a ceramic surface-mount package that is just 3.2x1.5x0.8 mm, the RV-8803-C7 real-time clock module from Swiss manufacturer Micro Crystal consumes 240 nA and operates from a supply voltage as low as 1.5 V to increase the life of backup supplies. Read More...

Audio Precision supports Dante pro networked audio

The company's APx58x Series, APx52x Series, APx555 and APx515 audio analyzers now let you test and characterize audio transported on Dante Ethernet-based networks. Read More...

RF receivers boast high sensitivity, low power consumption

Covering a frequency range of 400 MHz to 450 MHz, Micrel's MICRF229 and MICRF230 image-reject RF receivers provide a sensitivity of -112 dBm at a data rate of 1 kbps with 1% BER while operating from a 3.5-V to 5.5-V supply. Read More...

TI integrated high speed SoC including Digital Front End and JESD204B

Throughout my 42 year career in electronics, I have seen the battle of portions of FPGA solutions in telecom infrastructure being replaced by Graychip’s Digital Pre-Distortion IC solution, saving power, cost and size in highly dense base station PC cards. Then, years later, emerging FPGA technology replacing such optimized IC solutions as the Graychip Digital Pre-Distorion IC as that technology leap-frogged the customized solution. Read More...

EtherCAT slave controller integrates dual 10/100 PHYs

Offered in 64-pin QFN and QFP-EP packages, the LAN9252 standalone EtherCAT slave controller from Microchip not only furnishes two 10/100-Mbps Ethernet transceivers that accommodate both fiber and copper cable, but also cable diagnostics and multiple interfaces, including 8/16-bit Host Bus and SPI/SQP communication interfaces. Read More...

Indoor wireless mesh network is solar-powered

Linear Technology demonstrated its SmartMesh IP embedded wireless mesh network, powered by Sol Chip’s Solar Battery, at this month’s Hannover Fair 2015 trade show, promoting the use of solar energy to power industrial, maintenance-free Internet of Things applications. Read More...

>> SEE ALL

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 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: 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...

The West Bend No. 1 electric-frying-pan thermostat

Spray lubricant and contact cleaner save a dignified old product. Read More...

>> SEE ALL

5G base station architecture, Part 1: Evolution

I thought that now would be a good time to review, with you the EDN design audience readership, where we are at technically with the formation of 5G technology in light of the recent Brooklyn 5G Summit that took place on April 8-10, 2015 jointly organized by Nokia Networks and the NYU Wireless research Center at Polytechnic School of Engineering at New York University. Read More...

The Membrane Potentiometer

Membrane potentiometers have established themselves within the market over the past twenty years due to fascinating technological advancements in their field. This whitepaper introduces the advantages and disadvantages of the membrane potentiometer’s special design, and also outlines its possible applications. Read More...

A simple approach to develop SPICE macro models: Part 2

In this part 2 we will look at a different topology: a CMOS (rail-to-rail) input and output. The parameters you need to develop your macro model are the same as in part 1, as well as the three-stage topology: input, middle and rail-to-rail swing stages. Since we covered the CMOS output stage in part 1, we will focus on the input stage. Read More...

Industrial Internet of Things (IIoT) and its impact on the design of automation systems

This article looks at the system architecture for the IIoT, and focuses on the design challenges that must be solved to successfully implement IIoT-capable systems. Special attention will be given to the growing need for more and smarter sensors, MicroPLCs, and the emerging IO-Link standard. Read More...

Effect of external components tolerance on CMRR

Common Mode Rejection Ratio (CMRR) is one of the important parameters associated with ADCs and Op Amp circuits Read More...

Clocking wideband GSPS JESD204B ADCs

As high speed signal acquisition applications using multiple Analog to Digital Converters (ADCs) increase in complexity, each converter’s complementary clock solution will dictate the dynamic range and capacity of the system’s potential. Read More...

ZigBee and Thread move towards mesh network interoperability

On April 2, the Zigbee Alliance which consists of members consisting of silicon manufacturers, module providers and software developers on a global scale who adhere to the Zigbee standard, agreed to work together with the Thread Group whose goal is to make available the best means to control and connect products for the Smart Home. Read More...

Not your grandfather’s ADC: RF sampling ADCs offer advantages in systems design

Ever since the first commercial data converters were made, the insatiable need for faster and faster data rates meant that the data converter development had to keep pace. The latest avatar of the ADC is the RF sampling ADC with sampling speeds in the GHz realm. Read More...

Tear Down: The Propagating Plane Wave

Understanding the plane wave. All you need is the right picture. Read More...

Chasing 5G: Pizzacato, sigma delta and other architectures

“Outside-the-box” ideas about radically different architectures will emerge to meet the very difficult demands of higher speed and bandwidth radio at much lower power that 5G will need to be successful. Read More...

>> SEE ALL

Calibration means different things in different professions

Because the term "calibration" isn't listed in official government job listings, educators and job councilors might not guide people into the field. Read More...

Train safety technology could have saved lives

In light of the Amtrak incident, US authorities should have expedited a technological solution that will be mandated at the end of 2015 to greatly improve safety on the rails. Read More...

Laser-like audio with the PAL

A look at the state of audio beaming via ultrasonics. Read More...

Magnetron

The magnetron has become a household item since the introduction of microwave ovens into our kitchens. It's the magnetron that generates the microwaves that make the food hot. A brief look at what a magnetron actually consists of is worth a look. Read More...

Smart vs. Fart Lighting, wood-powered LEDs and levitating lightbulbs?

Lightfair is full of surprises, including a heat-powered LED lantern and a Smart Lighting System with a sense of smell. And has "Smart Lighting" become the lamest buzzword of the year? Read More...

Manchester Coded Bit Streams

A look at Manchester coding of a bit stream. Read More...

Drivers are driving me crazy

Are you dumping your unfiltered “everything” into your customer’s laps, thus making more work and aggravation for them while easing your burden? Read More...

4.9 Billion Reasons To Celebrate World IoT Day 2015

April 9th is the 5th annual World IoT Day. By the end of 2015, Gartner estimates that 4.9 billion connected things will be in use. If you haven’t planned to host an event or grab coffee with your favorite collaborator, don’t worry. Here are three important ways you can get involved Read More...

“Proof” that the Laplace Transform is Nothing

Can you find the error(s), if any, in the following mathematical derivation that applies the Laplace transform? Read More...

Ode to the Oscilloscope

Having been a teenager in the 1960s, and with popular tunes of that decade still in my head, I offer a lyrical rewrite of one of them, with apologies to the author of the ‘60s hit tune, "Hotrod Lincoln". (“You’ve heard the story of the great car race, where Fords and Lincolns were settin’ the pace ) This ode has gone through some refinement, and here is the latest version. Read More...

Slope Compensation in PCMC DC-DC Converters

Over the years I’ve run into a number of engineers who haven’t had the chance to fully master the concept of slope compensation in dc-dc converters. I’ll try to clarify this concept using the buck converter as a vehicle. Read More...

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