In the Cascade amplifier circuit in Figure 3, the transistors are equal and β =75 references Find the desired values below. a. Find Av =Vo/Vi. b. If the input signal VI = 5mVpp is applied, find the output signal VOP

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Multistage Amplifier

The multistage amplifier is generally a voltage or power amplifier. The multistage amplifier has a number of single stage amplifier that are cascaded together. Since a single stage amplifier output is not useful, they are being replaced with multistage amplifiers or multistage transistor amplifiers. The multistage amplifier are used where the gain required is high or the input signal is very small such that only a single stage amplifier cannot amplify it.