公开(公告)号：US11621683B2

公开(公告)日：2023-04-04

申请号：US17162229

申请日：2021-01-29

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Wei Xu ,  Ravi Kummaraguntla ,  Paul Wilson ,  Mujo Kozak ,  Christian Larsen ,  John L. Melanson ,  Yongjie Cheng

IPC: H03F3/45

Abstract: A system may include a front end differential amplifier having two input terminals, two input resistors, each of the two input resistors coupled to a respective one of the two input terminals, and an input common mode biasing circuit for an output stage of the front end differential amplifier, the input common mode biasing circuit comprising two current sources configured to generate currents for biasing the output stage of the front end differential amplifier.