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Tsedeniya Abraham
May 5, 2017
How to balance efficiency and settling time with highly integrated DACs
In my first post , I talked about the need for modular, flexible and smart design in analog output modules and explored methods for improving efficiency in a typical high-side voltage-to-current converter used to drive 4-20mA outputs. Figure 1 shows an implementation that involves a buck/boost converter in a simple feedback network to supply just the...
Tamara M Alani
Apr 21, 2017
Zero out your system error with zero drift, zero crossover and zero hassle
This post is co-authored by Richard Barthel and Errol Leon . In applications such as position sensors, data-acquisition systems and resistance temperature detectors (RTDs), it is important to design with high precision in mind. In many cases, designing with precision integrated circuits (ICs) reduces signal-chain complexity, lowers the external component...
Evan Sawyer
Mar 24, 2017
How to enable high-accuracy CW Doppler through discrete, precision data converters
Medical ultrasound is a noninvasive method of imaging the body’s internal structures (like organs) by transmitting high-frequency waves and measuring the reflections that occur at various boundaries within, such as between bone and muscle. Ther...
Tsedeniya Abraham
Mar 8, 2017
How new integrated DACs increase efficiency and reduce board space in analog output modules
Industry 4.0 has revolutionized the manufacturing industry, changing how factories are designed and implemented. In factory automation and process-control applications, Industry 4.0’s impact comes down to two fundamental concepts: the prolifera...
Evan Sawyer
Feb 17, 2017
Detecting pesky failing batteries before they cause a problem
As battery-powered systems become more common, quickly identifying a failing battery so that it can be replaced is becoming increasingly important. From an individual battery powering a mobile phone to a bank of batteries used to store renewable ene...
Cole Macias
Feb 3, 2017
Designing a discrete wide-bandwidth, cost-sensitive instrumentation amplifier
In this post, I’ll show how to design a cost-optimized, discrete, wide-bandwidth instrumentation amplifier using the TLV3544 . Instrumentation amplifiers are used for their high input impedance and ability to convert differential voltages to sin...
Ying ZHOU
Jan 20, 2017
Achieve big board-size reductions with tiny, precision op amps
Electronics such as smartphones, tablets, notebooks and wearable products are becoming more multifunctional, smaller and slimmer. Achieving higher functionality in smaller form factors requires extremely tiny ICs. Many times, different package types ...
Evan Sawyer
Dec 16, 2016
How to achieve higher-precision data acquisition in benchtop test equipment
The digital multimeter (DMM) is a centerpiece in any electronics lab, but as the precision of electronics continues to increase, so does the need for DMMs that can quickly and accurately measure current, voltage, resistance and other parameters. Thu...
Evan Sawyer
Nov 18, 2016
Multiplexers: not so simple
It’s simple to design a multiplexer (or mux for short) into a signal chain, right? After all, the device simply funnels multiple signals into a data converter. In reality, a mux can significantly impact the performance of a signal chain in a variety of ways. For example, the on-capacitance can cause crosstalk between channels. Signal- and temperature...
Matthew Poole
Oct 28, 2016
How to build a monitor and control solution for voltage regulators
In my last post , I talked about how to use a precision digital-to-analog converter (DAC) to margin a voltage regulator like a low-dropout regulator (LDO) or switch mode power supply (SMPS), providing the ability to either precisely tune the output or allow it to swing over a wide range of voltages. In this post, I will expand upon that idea to build...
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