L Thread Starter lean Joined Oct 15, 2004 3 Oct 16, 2004 #1 I am working with a differencial biopotencial amplifier based on two coupled buffers and a common instrumentation amplifier. Why must be ac-coupled the bipotential amplifiers??
I am working with a differencial biopotencial amplifier based on two coupled buffers and a common instrumentation amplifier. Why must be ac-coupled the bipotential amplifiers??
beenthere Joined Apr 20, 2004 15,819 Oct 17, 2004 #2 Hi, That's a good question, as DC voltages at the inputs are considered common-mode, and instrumentation amps usually ignore such signals. Could you post the circuit so we can make more informed comments?
Hi, That's a good question, as DC voltages at the inputs are considered common-mode, and instrumentation amps usually ignore such signals. Could you post the circuit so we can make more informed comments?
