The board must be supplied with +12 V on +VCC and -12 V on -VCC.
Gain adjustment
The AMP200 is composed of two cascaded amplifiers: a front-end amplifier with a fixed gain of 5 and a buffer with an adjustable gain from 1 to 100. The buffer gain is set using the GAIN potentiometer.
Input offset adjustment
Input offset voltage can be adjusted between -100 mV and +100 mV with the OFFSET trimmer. If input offset adjustment is not required, it can be disabled by setting the OFFSET jumper to OFF. This improves the input voltage noise floor below 1 kHz.
AC / DC coupling
AC or DC input coupling can be selected using the DC / AC switch.
