9.85 The differential amplifier of Fig. 9.31(a) is found to have a differential short-circuit transconductance of 2 mA/V. A differential input signal is applied and the output voltage is measured with a load resistance RL connected. It is found that when RL is reduced from ∞ to 25 kΩ, the magnitude of the output signal is reduced by half. What do you estimate Ro and Ad (with RL disconnected) to be?
9.85 The differential amplifier of Fig. 9.31(a) is found to have a differential short-circuit transconductance of 2 mA/V. A differential input signal is applied and the output voltage is measured with a load resistance RL connected. It is found that when RL is reduced from ∞ to 25 kΩ, the magnitude of the output signal is reduced by half. What do you estimate Ro and Ad (with RL disconnected) to be?
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