Electronics - Operational Amplifiers - Discussion

Input offset voltage is the equivalent voltage at the input of an operational amplifier. If an amplifier has a voltage gain of ten and an input offset voltage of 10 microvolts, a level of 100 microvolts will appear at the output with no input. Manufacturers try to design an op amp so the input offset voltage is as small as possible to minimize this error voltage at the output of the amplifier, especially for applications where small voltages are being amplified.

What is Offset voltage?

Thanks meda for the details.

Ideal oprational amplifier has

- open loop Gain infinte
- input impedance infinite
- output impedence Zero
- bandwidth infinite
- offset voltave zero