作者: Behrooz Abdi , John E. Hanna
DOI:
关键词: DC bias 、 Operational amplifier applications 、 Control theory 、 Input offset voltage 、 Pulse (physics) 、 Signal 、 Comparator 、 Negative feedback amplifier 、 Instrumentation amplifier 、 Computer science
摘要: An offset cancellation circuit corrects DC appearing at the input of a comparator circuit. The first summing junction receives an signal containing offset. output drives and feedback amplifier, latter which returns to second junction. Any is processed through amplifier where it subtracts from for providing zero comparator.