Amplifiers Flashcards
(5 cards)
1
Q
In an inverting op-amp configuration what is the expected phase relationship between input and output signals
A
Output is 180 degrees out of phase with input
2
Q
In op-amps why is negatives feedback commonly used?
A
To stabilise the circuit and control gain
- helps reduce distortion and improve bandwidth while ensuring predictability
3
Q
What is the primary function of a voltage follower/buffer?
A
To provide high input impedance and low output impedance
4
Q
A
5
Q
Typical gain of an op amp
A
100,000 or more
