Differential Op Amp Output. 100 5000 a c. Fully differential op amp schematic symbol the output is fully differential the two outputs are called positive output and negative output similar terminology to the two inputs.
R f feedback resistor. The differential gain of the amplifier is 5000 and the value of cmrr is i 100 and ii 10 5. V b non inverting input voltage.
In other words an op amps output signal is the difference between the two input signals as the input stage of an operational amplifier is in fact a differential amplifier as shown below.
The output of the op amp is just the open loop gain aol times the differential input current i times the differential input impedance 2 rd therefore where r is the average of r and r. Determine the output voltage of a differential amplifier for the input voltages of 300µv and 240µv. An operational amplifier often op amp or opamp is a dc coupled high gain electronic voltage amplifier with a differential input and usually a single ended output. In a fully differential amplifier the output is differential and the output common mode voltage can be controlled independently of the differential voltage.
