A problem I try to take care is: My inputs are connected to AduCM360 in parallel with a 1MOhm resistor to ground. When I remove the input signal, ground the inputs for about 1ms then float it, instead of staying near ground due to the 1M Ohm pull-down, the ADC's input brings the floating input back towards the previous signal!
I tried different gain settings and the result was the same
If I place an Op-Amp in front of ADC, this problem goes away, so I'd like to turn on the AMPs for both the positive and negative inputs to stop such feedback, but I cant' find any flag to turn on them in AdcLib.C (see below for AdcBuf(), which offers flag to turn off the BUF, but not AMP)
Could you give me a pointer?