Operational Amplifiers
Wednesday, 10 July 2019
6:30 PM
Symbol |
Equivalent Circuit |
|
Ideally, an amplifier has an infinite gain
But, realistically, they are limited, usually (80 - 120dB)
Ideal |
Real |
is large |
|
dB |
|
Input Bias Current = |
Input Bias Current < |
Input Offset Current = |
Input Offset Current < |
Input Offset Voltage = |
Input Offset Voltage < |
Amplifiers amplify the difference between the inverting and non-inverting inputs.
The CMMR is a measure of the ability of an amplifier to amplify the difference
- differential gain
- common voltage
Created with Microsoft OneNote 2016.