메인 콘텐츠로 건너뛰기
Knowledgebase
Home
Renesas Korea

What is offset voltage?

Latest Updated:03/01/2006

Question:

What is offset voltage?

Answer:

In an operational amplifier, the output voltage should theoretically be 0 V when the voltage differential between the input pins is 0 V. However, in reality, VBE of the positive and negative input transistors in the input stage's differential amplifier circuits differs. As a result, the voltage differential between the input pins is not 0; in fact, a slight amount of voltage is output. This output voltage is known as offset voltage.

Also refer to FAQ opcomp-0002 "What is input offset voltage (VIO) ?"



Suitable Products
Operational Amplifiers
USB3.0 Host Controller
UPD720202
UPD720201
UPD720200A
UPD720200
USB2.0 Host Controller
UPD720102
UPD720101
UPD720100A