Question 5
- State three types of amplifier.
- Copy and complete Table 1
Class of amplifier |
Operating point |
A |
|
B |
|
C |
|
State one property of an ideal operational amplifier.
Observation
(a) - Push-pull amplifier
- Operational amplifier
- Voltage amplifier
- Power amplifier
- Type of amplifier in terms of class (A,B,C)
- RF power amplifier.
(b)
Class of Amplifier |
Operating point |
A. |
Biased near the middle of linear region |
B. |
Biased at cut-off point |
C. |
Biased beyond cut-off point (region) |
(c) Property of Op-Amps
- Infinite voltage gain
- Infinite input impedance
- Zero output impedance
- Infinite bandwidth
- Zero input offset voltage