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The schematic of a BJT two-stage op-amp is shown in Fig. 2. (a) Find the small-signal open-loop gain Ao of the op-amp in
Posted: Tue Jun 07, 2022 11:28 am
by answerhappygod
- The Schematic Of A Bjt Two Stage Op Amp Is Shown In Fig 2 A Find The Small Signal Open Loop Gain Ao Of The Op Amp In 1 (62.49 KiB) Viewed 33 times
The schematic of a BJT two-stage op-amp is shown in Fig. 2. (a) Find the small-signal open-loop gain Ao of the op-amp in terms of small-signal parameters. Assume r4 <<< ro1||ro2 and that the gain of the output stage is 1. (b) If I were doubled, by what factor would gm1 change? (c) Describe what happens to Ao under each of the following conditions. (i) I₁ is doubled (ii) I4 is doubled (ii) I₁ and I are both doubled Vcc CC - QIA QIB 22A Q2B Fig. 2 Q5 16 26 91 Vou out