To increase the input resistance in differential amplifier, replace the transistor by
A. Current mirror
B. Current repeater
C. Darlington pair
D. All of the mentioned
Answer:A
To increase the input resistance in differential amplifier, replace the transistor by
A. Current mirror B. Current repeater C. Darlington pair D. All of the mentioned
Explanation: Higher value of input resistance can be obtained by using Darlington pair in place of transistor.