How to process high voltage input levels without losing much SNR
It is often difficult to find an a/d converter that aligns with the analogue input range, but also has the appropriate number of inputs, the needed size, and the correct sample speed.
Especially for system designers working with wide voltage swings, there is a concern that scaling down the input signal to drive an a/d converter's full scale range can significantly degrade the signal to noise ratio (SNR).
This whitepaper discusses what affects this SNR loss, how it can be quantified, and more importantly, how it can be minimised.
