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venkyelectrical
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Asked: 2022-01-05T18:26:54+00:00 In:

2.106 A Miller integrator with R = 10 kΩ and C = 10 nF is implemented by using an op amp with VOS = 2 mV, IB = 0.1 µA, and IOS = 20 nA. To provide a finite dc gain, a 1- MΩ resistor is connected across the capacitor. (a) To compensate for the effect of IB, a resistor is connected in series with the positive-input terminal of the op amp. What should its value be? (b) With the resistor of (a) in place, find the worst-case dc output voltage of the integrator when the input is grounded. (a) 9.9 kΩ; (b) 0.222 V

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2.106 A Miller integrator with R = 10 kΩ and C = 10 nF is implemented by using an op amp with VOS = 2 mV, IB = 0.1 µA, and IOS = 20 nA. To provide a finite dc gain, a 1- MΩ resistor is connected across the capacitor.

(a) To compensate for the effect of IB, a resistor is connected in series with the positive-input terminal of the op amp. What should its value be?
(b) With the resistor of (a) in place, find the worst-case dc output voltage of the integrator when the input is grounded.
(a) 9.9 kΩ; (b) 0.222 V

microelectronics by sedra and smith 8th edition chapter 2
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