公开(公告)号：US20210226619A1

公开(公告)日：2021-07-22

申请号：US17223097

申请日：2021-04-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Nitin Agarwal ,  Venkat Ramakrishna Saripalli ,  Venkata Ramanan R.

IPC: H03K5/24 ,  H03F1/02 ,  H03F3/45

Abstract: In described examples, an amplifier can be arranged to generate a first stage output signal in response to an input signal. The input signal can be coupled to control a first current coupled from a first current source through a common node to generate the first stage output signal. A replica circuit can be arranged to generate a replica load signal in response to the input signal and in response to current received from the common node. A current switch can be arranged to selectively couple a second current from a second current source to the common node in response to the replica load signal.