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Volume 49 ó April 2015

Timely Information

Application Notes

Circuits from the Lab

New-Product Briefs

Rarely Asked Questions

Technical Articles

Webcasts

  

Products

Amplifiers

Analog-to-Digital Converters

Application Specific

Audio and Video Products

Broadband

Clock and Timing

Digital-to-Analog Converters

Interface and Isolation

Linear Products

MEMS

Optical

Power Management

Processors and DSP

RF and Microwave

Sensors

Switches and Multiplexers

  

Analog Dialogue--Since 1967

Feature Articles: Products, Applications, Technology, Design Ideas, Tutorials, and Measurement Techniques

input_protection

RF Sampling ADC input protection: Not black magic after all

To counter the risk from overvoltage stress, RF-sampling ADCs include circuitry that detects high thresholds, allowing the receiver to compensate by adjusting the gain with an automatic gain control (AGC) loop. With a pipelined ADC, however, the inherent latency associated with the architecture can briefly expose the input to a high level, potentially harming the ADC inputs. This article discusses a simple method that can augment the AGC loop to protect the ADC.

sensor board and CDC

Liquid Level Sensing Using Capacitive-to-Digital Converters

Procedures such as infusions and transfusions require exact amounts of liquid to be monitored, so they need an accurate, easy-to-implement method for sensing liquid level. This article describes the 24-bit capacitive-to digital converters and level-sensing techniques that enable high-performance capacitive sensing of liquid levels.

muntz

Muntzing can save cost, components, and even your sanity

Do I really need to match the impedance between both inputs of my amplifier?

FPGA-Based Systems Increase Motor-Control Performance

Advanced motor-control systems combine control algorithms, industrial networks, and user interfaces, so they require additional processing power to execute all tasks in real time. Multichip architectures are used to implement modern motor-control systems: a DSP executes motor-control algorithms; an FPGA implements high-speed I/O and networking protocols; a microprocessor handles executive control.

Powering ICs On and Off

Modern integrated circuits employ sophisticated circuits to ensure that they turn on in a known state; and preserve memory, boot quickly, and conserve power when they are powered down. This two-part article provides tips for using power-on reset and power-down functions.

reference

Isnít that gain specification a bit lopsided?

Can you explain why the minimum and maximum gain errors specified by my ADC differ so much?

...Recent Articles

Timeless Information

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Analog Dialogue is the technical magazine of Analog Devices. It discusses products, applications, technology, and techniques for analog, digital and mixed-signal processing.

Copyright 1995- Analog Devices, Inc. All rights reserved.          ISSN 1552-3284