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QA101B Mixed Signal Oscilloscope
QA150 High Side Current Sense Amp
QA350 Microvolt DC Volt Meter
QA401 Audio Analyzer
QA401 and USB Noise
March 12, 2017
The QA401 relies on USB power. This is a great convenience because it means setup and making a measurement is quick and easy. But not all USB power...
QA401 Update 1.50
January 26, 2017
We’ve had some features in the queue for a while on the QA401 that made it out in the 1.50 release. Remember, the goal with the QA401 isn’t the be-...
Ultra-low Current Measurements with the QA150
November 30, 2016
This post looks at how the QA101B Mixed Signal Oscilloscope and QA150 High Side Current Sense Amp can be used together to help the engineer underst...
ABX Testing and Distortion
September 03, 2016
Intro ABX testing is a way to compare two similar versions of something, in this case sound. The user is presented with an audio stream called the ...
First Look: Evaluating Class D Power Amps with the QA401
April 30, 2016
Texas Instruments has been in the Class D power amp business for a while. And it shows. Like most tech, Class D first arrived as a solution in sear...
QA40x and IMD Measurements
August 08, 2013
Intro We will look into adding the ability to make automatic IMD (Inter-Modulation Distortion) measurements on the QA400 at some point in the futu...