I am facing a problem on acquiring data from strain gauge bridge circuit.
I have built a circuit as shown in the document below and the response is quite good.
I connect the output of amplifier to a channel of ADC11 and monitor that channel with PicoScope. The voltage jumps between 0V and 2.5V continuously. (Looks like digital codeword 010101010101010101.......)
What's going wrong, is it the effect of signal noise? Or, should I common the ground of bridge circuit to pin 1 of ADC11?