Explanation: As gain is proportional to load resistor, large resistance value is required. Due to limitation mentioned, it is neglected. 11. What is the need for level shifter in operational amplifier?
A. Level the quiescent voltage
B. Remove distortion at output
C. Limits the output voltage
D. Increase the quiescent voltage
Answer:A
Explanation: As gain is proportional to load resistor, large resistance value is required. Due to limitation mentioned, it is neglected. 11. What is the need for level shifter in operational amplifier?
A. Level the quiescent voltage B. Remove distortion at output C. Limits the output voltage D. Increase the quiescent voltage
Explanation: Because of direct couple, Dc level rises stages to stage and tends to shift operating point. This limits output swing (Voltage). 12. Limitation of an output stage amplifier, if it emitter follower with complementary transistor