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7.78 A CG amplifier when fed with a signal source having Rsig = 100 2 is found to have an overall voltage gain of 12 V/V. When a 100-N resistance is added in series with the signal generator, the overall voltage gain decreases to 10 V/V. What must gm of the MOSFET be? If the MOSFET is biased at Ip = 0.25 mA, at what overdrive voltage must it be operating?

7.78 A CG amplifier when fed with a signal source having Rsig = 100 2 is found to have an overall voltage gain of 12 V/V. When a 100-N resistance is added in series with the signal generator, the overall voltage gain decreases to 10 V/V. What must gm of the MOSFET be? If the MOSFET is biased at Ip = 0.25 mA, at what overdrive voltage must it be operating?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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7.78 A CG amplifier when fed with a signal source having Rsig = 100 2 is found to have an overall voltage gain of 12 V/V. When a 100-N resistance is added in series with the signal generator, the overall voltage gain decreases to 10 V/V. What must gm of the MOSFET be? If the MOSFET is biased at Ip = 0.25 mA, at what overdrive voltage must it be operating?
Transcribed Image Text:7.78 A CG amplifier when fed with a signal source having Rsig = 100 2 is found to have an overall voltage gain of 12 V/V. When a 100-N resistance is added in series with the signal generator, the overall voltage gain decreases to 10 V/V. What must gm of the MOSFET be? If the MOSFET is biased at Ip = 0.25 mA, at what overdrive voltage must it be operating?
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