2. A non-inverting amplifier incorporates an opamp having an open-loop gain, Ao = 104, and bandwidth, fo = 100 kHz. (a)
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- 2 A Non Inverting Amplifier Incorporates An Opamp Having An Open Loop Gain Ao 104 And Bandwidth Fo 100 Khz A 1 (70.5 KiB) Viewed 33 times
0.4V KPp = µpCox = 100 µA/V 2 |VTHP | = 0.4V
2. A non-inverting amplifier incorporates an opamp having an open-loop gain, Ao = 104, and bandwidth, fo = 100 kHz. (a) Assuming single-pole model, what is the unity-gain frequency, fun, of the opamp? (b) If the circuit is designed for a closed-loop gain of Acı = 8, determine the resulting closed-loop bandwidth (fp,cl) and time-constant (T). Remember that w = 2nf to convert between angular frequency (rad/s) and frequency (Hz). (c) What is the percentage gain-error? (d) If the amplifier has to settle within a time period Tg = 100 ns, estimate the percentage error due to settling.