Design a differential amplifier with the configuration shown in Figure 11.28 incorporating a basic two-transistor current source to establish IQ. The bias voltages are to be V+ = +5 V and V− = −5 V, the bias current is to be IQ = 250 μA, and the available transistors have parameters β = 180, VBE(on) = VEB(on) = 0.7 V, VAN = 150 V, and VAP = 100 V. (a) Show the complete circuit, (b) What is the open-circuit differential-mode voltage gain, (c) Determine the differential-mode input resistance and the output resistance, (d) Determine the common-mode input voltage range.
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