Invention Grant
- Patent Title: Chopper amplifier with decoupled chopping frequency and threshold frequency
-
Application No.: US16221473Application Date: 2018-12-15
-
Publication No.: US10756685B2Publication Date: 2020-08-25
- Inventor: Bharath Karthik Vasan , Vadim Valerievich Ivanov , Piyush Kaslikar , Srinivas K. Pulijala
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Charles A. Brill; Frank D. Cimino
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H03F3/00 ; H03F3/45 ; H03F1/30
Abstract:
A chopper amplifier circuit includes a first amplifier path with chopper circuitry, a switched-capacitor filter, and multiple gain stages. The chopper amplifier circuit also includes a second amplifier path with a feed-forward gain stage. A chopping frequency of the chopper circuitry is greater than a threshold frequency at which the second amplifier path is used instead of the first amplifier path.
Public/Granted literature
- US20200106400A1 CHOPPER AMPLIFIER WITH DECOUPLED CHOPPING FREQUENCY AND THRESHOLD FREQUENCY Public/Granted day:2020-04-02
Information query
IPC分类:
