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ADC Linear Gain/Offset Correction
In my last post I explored the errors of unprocessed ADC data. In this post, I will show what happens if you add some simple gain + offset correction. Gain error is caused by DNL. The ideal code width is 1, but lets say that there is a predictable DNL error of +.1 LSB- that … Continue reading ADC Linear Gain/Offset Correction
Arduino, ESP32, SAMD21, ADS1015 ADC Comparison
Hopefully my catchy title helps people find this post. After spending some time building a tools to compare A/D converters, I wanted to share some results from popular micros and previously popular (but now out of stock) ADCs. Single Reading Accuracy/ENOB ENOB, effective resolution, noise free resolution – these are all ways people describe an … Continue reading Arduino, ESP32, SAMD21, ADS1015 ADC Comparison
ADC Comparison – What and How I am Testing
I built a tool to measure DC performance of an ADC. Since I have it, I figured I may as well use it to investigate the four ADCs I have lying around- an esp32, and arduino uno (atmega328), SAMD21 based feather board, and the ADS1015. This post is about the data I want to collect … Continue reading ADC Comparison – What and How I am Testing
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AyLo 