30-dB Automatic Gain Control with the AD531

The circuit will maintain 3V peak-to-peak output for inputs ranging from 0.1Vp-p to more than 12Vp-p, with better than 2% regulation 0.4Vp-p to 6Vp-p, and distortion well below 1%. Input frequency can range from 30Hz to 400kHz (-3dB). Read full article