News
16-bit, dual-channel ADCs span 20M to 80M samples/sec 11/4/2009
Analog Devices’ new AD9269 family of 20M-, 40M-, 65M-, and 80M-sample/sec pipeline ADCs takes 16-bit samples.3.3V mixer downconverts RF with good linearity 10/28/2009
Linear Technology Corp’s new LTC5541 downconverting mixer operates at frequencies of 1.3 to 2.3 GHz, and the company plans to later introduce pin-compatible parts that will operate at 0.6 to 4 GHz.FPGA-evaluation boards come with design software 10/21/2009
Altium’s new NanoBoard 3000 embedded-system-development platform includes a board with an FPGA chip, an IR (infrared) remote control, and a 12-month license for Altium Designer schematic and FPGA software.Quad-PWM-controller IC includes low-dropout linear regulator 10/19/2009
Exar Corp’s new 5A XRP7704 and 16A XRP7740 quad-PWM (pulse-width-modulation)-controller chips include gate-driver circuitry that drives external FETs.Stable quartz oscillator uses SAW technology 10/13/2009
Targeting LAN (local-area networks) and SAN (storage-area networks), Epson Toyocom recently announced the highly stable EG-4101/4121CA SAW (surface-acoustic-wave) resonator.In-Depth
Using high-current integrated-switch power-regulator ICs 10/22/2009
Learn the thermal considerations so you don't get burned.Specify an external reference clock to improve SERDES performance 10/21/2009
Various serial data standards require different clock specifications.Comparing comparators: Measure signals, get results 10/8/2009
Simple in concept, voltage comparators have myriad specifications that complicate their application.A new set of Sallen-Key filter equations 10/1/2009
New design equations let you pick equal capacitor values and solve for the resistors to achieve any desired gain in one stage.Draw the line: Isolation shields systems from shocking surprises 9/3/2009
You must design isolation into your circuits if you want to ensure user safety, eliminate ground loops, and reduce noise. Before selecting a technology, make sure that you understand all the specs and design considerations.Experts
Real signals 10/8/2009
The piecewise-linear step starts with a jerk, mindlessly follows a perfectly uniform ramp, and smacks hard into its upper limit. Real signals don't do that.A designer's guide to op-amp gain error 9/17/2009
When selecting the proper operational amplifier for your circuit, you need to know how much gain error your design can tolerate.Sliding edge 9/3/2009
Boards with different transmission-line geometries require special techniques. Here's how to cope when high-speed signals reflect due to the sudden change in board properties as they move across the connection.One circuit provides system resolution and 12-bit accuracy 8/20/2009
Handheld meters, data loggers, and automotive and monitoring systems typically require a multiplexed system with good accuracy and high system resolution. Is it possible to get this mixture of requirements into one circuit?The nature of ESD 8/6/2009
To control ESD (electrostatic-discharge) transient currents, you must design the system so that ESD events have only one clear path to ground at every single point.DesignIdeas
