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Tips, tricks and techniques from TI precision analog experts.
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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...
Timothy Claycomb
Oct 14, 2016
How to layout a PCB for an instrumentation amplifier
In my previous post , I discussed the proper way to layout a printed circuit board (PCB) for an operational amplifier (op amp) and provided a list of good layout practices to follow. In this post, I will discuss common mistakes when laying out a PCB f...
Cole Macias
Sep 30, 2016
How to fix your simulations when the macromodel’s voltage noise doesn’t match the datasheet
When responding to questions posted on TI E2E™ Community forums , we frequently run simulations using TINA-TI ™ software, a SPICE-based simulation program. Since we are always in the process of updating our simulation models, we sometimes run across SPICE models that are old, outdated or incorrect when modeling performance parameters. ...
TI Peggy
Sep 16, 2016
Why is it so challenging to design a voltage reference circuit for an ADC?
High-precision data-acquisition systems are designed to minimize errors from various system components, like those introduced by switching transients on the reference input of a data converter. In the case of a successive approximation register analo...
Matthew Poole
Sep 2, 2016
Give your voltage regulator the margin it deserves
Do you feel like your adjustable voltage regulator deserves some margin? I do, and I have some good news: all it takes is one DAC and one resistor! The traditional feedback system for a linear regulator (LDO), shown in Figure 1, has a resistor divide...
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