Two-Stage Op-Amp The two-stage op-amp depicted in Figure 1 has Slew Rate of 1V/usec, determine: 1. The tail current of the Input Stage and the gm of Q1 and Q2, (You may assume that V? = 26mV) Answers: Int 52uA, 1mA/V 1k62 0.5mA/V Q1 52pF 1.53MHz 104uA HE Los Q + Ko4 Figure 1 2. The Transconductance of the Differential Input Stage, Gm1 =? GBW =

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Two-Stage Op-Amp The two-stage op-amp depicted in Figure 1 has Slew Rate of 1V/usec, determine: 1. The tail current of the Input Stage and the gm of Q1 and Q2, (You may assume that V? = 26mV) Answers: Int 52uA, 1mA/V 1k62 0.5mA/V Q1 52pF 1.53MHz 104uA HE Los Q + Ko4 Figure 1 2. The Transconductance of the Differential Input Stage, Gm1 =? GBW = ? 3. The Gain-BW Product of the Op-amp, 05 If the Transconductance of the Second Stage Gm2 = 9 is 8 times that of the First Stage, determine: 4. The Bias Current of the Second Stage Iptasz =? 1k2 ww Q2 Ibiar? 99102 ==?

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