Patent ID: 11936354
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. An amplifier circuit that outputs a pair of differential output signals through a first output terminal and a second output terminal, comprising:
a first amplifier stage electrically connected to a first node and a second node and configured to amplify a pair of differential input signals;
a second amplifier stage electrically connected to the first node and the second node and coupled to the first output terminal and the second output terminal;
a first switch coupled between the first output terminal and a first reference voltage;
a second switch coupled between the second output terminal and the first reference voltage;
a third switch coupled between the first node and the first reference voltage;
a fourth switch coupled between the second node and the first reference voltage; and
a fifth switch coupled between a second reference voltage and the first amplifier stage;
wherein the second amplifier stage functions as a common-source amplifier.