How should I optimise the lock-in amplifier's gain setting?

Published May 7th, 2024 by John Miller

In general, the gain, G, should be set as high as possible whilst avoiding saturation. Internally, the lock-in amplifier represents data with a much greater bit-depth than can be used at the output of the instrument (our ADCs offer no more than 16 bits, for example). If we are able to apply gain without saturation, then not only does the signal get