Operation Transistor. Matthew Ladew Philip Hart Jenniffer Estrada. Stage 1 Amplifier. Pmos transistors MP1 and MP2 ensure identical biasing drain currents for MND1 and MND2 Active load- behaving as a current-stable nonlinear resistor Act similarly to a current mirror
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Fig. 1: Stage one, the differential amplifier and current source
Gain of stage one: 29 V/V
Fig. 2. Current mirror schematic
Fig. 3 Two stage amplifier with second stage, common source amplifier on the right side of the schematic
Gain of stage two: -35 V/V
VGG > 1.1(Vtn + ⎟Vtp⎜) and VO = 0.
Fig. 4 Complete three stage amplifier, with third and final stage
Stage 3 Gain: 1800 V/V
Third stage: Yellow trace is Vo2+, Green is Vo, purple is Vo2+ - Vo; this demonstrates the effect of RGG on the crossover distortion.