Differential Amplifier Circuit Formula. In the circuit shown in figure 5 vin 0 and β2 0. Then the output expression would simply be vout v2 v1.
Differential amplifier using op amp. The circuit diagram of a differential amplifier using one opamp is shown below. Non inverting summing amplifier with n inputs.
Setting r2 r r3 mr c1 c and c2 nc results in.
Differential amplifier using op amp. It is easiest to start the design by choosing standard capacitor values for c1 and c2. The output voltages are 2v v 1 v ocm 1 in 1 out β β 2v. 2 v v ocm 2 in od β v v 2v 2 in out ocm β v v 2 in out β and with β2 0 the gain is twice that of an inverting amplifier without the minus sign.
