Variable Gain Amplifier

This project is a design of a low frequency Variable Gain Amplifier which is intended to be used for amplitude adjustment in order, to for example use the full dynamic range of an ADC.

The project came up when experimenting with opamps.

The front-end can be controlled fully digitally, example code for an Arduino is provided.

The full description can be found under:
https://digibird1.wordpress.com/variable-gain-amplifier/

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