BME IDEAS 2 EXAM QUESTIONS AND
ANSWERS
Design Principles -
correct answer ✅measure voltage difference
need high input impedance
need to filter the signal
need high gain
common mode rejection ratio -
correct answer ✅difference between the two different points in
the circuit
impedence -
correct answer ✅resistance to current flow
minus on op-amps -
correct answer ✅inverting input
golden rules of op-amps -
correct answer ✅Va = Vb
(voltages appearing at the two input terminals are always the
same)
ANSWERS
Design Principles -
correct answer ✅measure voltage difference
need high input impedance
need to filter the signal
need high gain
common mode rejection ratio -
correct answer ✅difference between the two different points in
the circuit
impedence -
correct answer ✅resistance to current flow
minus on op-amps -
correct answer ✅inverting input
golden rules of op-amps -
correct answer ✅Va = Vb
(voltages appearing at the two input terminals are always the
same)