Saturday, 6 July 2019

microcontroller - ADC input protection?


I need to sample an analog voltage from a sensor (0-12v) in an environment where large voltage spikes may be induced in the transmission line, what's the best (simple and cheap) method of protecting the ADC input pin of a PICAXE?


FYI: I'm thinking of using a simple voltage divider to reduce voltage range of the sensor, and a TVS to protect the ADC input.




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