List of top Instrumentation Engineering Questions on Operational Amplifiers

A voltage follower is as shown in figure. Given that the open loop gain of an op-amp (A = 99), then what is the value of the output voltage $V_o$. Assume that the op-amp is ideal except that it is having a finite open loop gain.

The op-amp and the 1 mA current source in the circuit of figure are ideal. The output of the op-amp is:

When the switch $S_2$ is closed, the gain of the programmable gain amplifier shown in the following figure is:

For the op-amp circuit shown in the figure below, $V_o$ is:

If the op-amp in figure is ideal, the output voltage Vout will be equal to:

A 741-type op-amp has a gain bandwidth product of 1 MHz. A non-inverting amplifier using this op-amp and having a voltage gain of 20 dB will exhibit a 3 dB bandwidth of:
If the differential voltage gain and the common mode voltage gain of the differential amplifier are 48 dB and 2 dB respectively, then its common mode rejection ratio is: