Patent ID: 7737780

Claim:
An operational amplifier for improving settling behavior, comprising: a first amplification stage connected to a first input port and a second input port; a second amplification stage operatively coupled to said first amplification stage; a third amplification stage operatively coupled to said first amplification stage and said second amplification stage; a fourth amplification stage operatively coupled to said second amplification stage; a fifth amplification stage operatively coupled to said third amplification module and said fourth amplification stage; a sixth amplification stage operatively coupled to said fourth and fifth amplification stage; and wherein the second amplification stage comprises: a first gain boosting module receiving a bias voltage at a first input terminal; a fourth transistor having a gate terminal connected to an output of said first gain boosting module, a source terminal connected to a second input terminal of said first gain boosting module, and a drain terminal connected to a first output terminal; and a first compensation module operatively coupled to said fourth transistor and said first gain boosting module.