1. The Ideal Op Amp Inverting and non-Inverting configurations
Chapter 5-1
The Ideal Op Amp
Inverting and non-Inverting
configurations

3. Op-amp schematic symbol and 8 pin IC2 - + 3 6
Pins 1 and 5
Offset nulls
Can be biased to help null voltage offsets
Pin 2
Inverting input
When used as input, produces an inverted signal at the op amp output. (or 1800 out of phase with input)
Pin 3
Non-inverting input
When used as input, produces a non-inverted signal at the op amp output. (or in phase with input)
Pin 4 V-
Connection for the negative power supply, typically calls for (-12) to (-15) volts
Pin 6
Output
Signal output
Pin 7 V+
Connection for the positive power supply, typically calls for (12) to (15) volts
Pin 8 NC
Not used

4. - +
The constant A is classified as the open loop gain (no
feedback network)
Ideal op-amp the open loop gain is defined as infinite in
magnitude
Actual gain not infinite and limited by its power source

5. Ideal Op-amp assumptions+
The current entering the inverting and non-inverting input terminals are both equal to zero (the input impedance of an ideal op-amp is infinite)
The difference between the voltages at the inverting input and the non- inverting input terminal is approximately equal to zero

10. What you should know
Basic info on op amps
Quiz 3