Explanation: The base emitter voltage of transistor (VBE) in constant current circuit by 2.5mv/oc, thus diode also has same temperature. Hence two variations cancel each other and total current IQ become in depend of temperature. 8. How to improve CMRR value
A. Increase common mode gain
B. Decrease common mode gain
C. Increase Differential mode gain
D. Decrease differential mode gain
Answer:A
Explanation: The base emitter voltage of transistor (VBE) in constant current circuit by 2.5mv/oc, thus diode also has same temperature. Hence two variations cancel each other and total current IQ become in depend of temperature. 8. How to improve CMRR value
A. Increase common mode gain B. Decrease common mode gain C. Increase Differential mode gain D. Decrease differential mode gain
Explanation: For a large CMRR value, ACM should be small as possible. 9. Define total current (IQ) equation in differential amplifier with constant current bias current