Which of the following is not preferred for input stage of Op-amp?
A. Dual Input Balanced Output
B. Differential Input Single ended Output
C. Cascaded DC amplifier
D. Single Input Differential Output
Answer:A
Which of the following is not preferred for input stage of Op-amp?
A. Dual Input Balanced Output B. Differential Input Single ended Output C. Cascaded DC amplifier D. Single Input Differential Output
Explanation: Cascaded DC amplifier suffers from major problem of drift of the operating point, due to temperature dependency of the transistor.