A High - Swing 2 V CMOS Operational Amplifier with Gain Enhancement using a Replica Amplifier

نویسندگان

  • Paul C. Yu
  • HaeSeung Lee
چکیده

This open-loop gain enhancement circuit in 1.2pm CMOS does not require cascode or long-channel transistors, thus maximizing output swing and input common-mode range [1,21. Since gain enhancement is achieved not by increasing output resistance, but by matching main and replica amplifiers, high effective open-loop gain is maintained even with resistive loads. This circuit can be used with any transconductance amplifier circuit, A basic 2-stage amplifier circuit demonstrates gain enhancement for low-voltage applications.

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تاریخ انتشار 1993