Question: For the differential input stage shown below, the differential input impedance is required to be 100k?. Estimate the bias current in the differential amplifier to

For the differential input stage shown below, the differential input impedance is required to be 100k?. Estimate the bias current in the differential amplifier to meet this specification. Hence calculate the value of R2 (in k?) required to set this bias current. The Early voltage of the NPN transistor is 150 V and that for the PNP is 50 V.

For the differential input stage shown below, the

Vec (+9 V) as 2N2907 04 2N2907 Va(+) Vn(-) ZN2907 2N2907 R2 Vout 2N2222 Vee (-9 V)

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