Invention Grant
- Patent Title: Amplifier sharing technique for power reduction in analog-to-digital converter
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Application No.: US15231166Application Date: 2016-08-08
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Publication No.: US09602118B2Publication Date: 2017-03-21
- Inventor: Peng Cao , Amit Kumar Gupta , Venkata Krishnan Kidambi Srinivasan
- 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 Gregory J. Albin; Charles A. Brill; Frank D. Cimino
- Main IPC: H03M1/00
- IPC: H03M1/00 ; H03M1/08 ; H03M1/12 ; H03M3/00

Abstract:
A dual delta-sigma modulator includes a first modulator, a second modulator, and a shared amplifier coupled to the first and second modulators. The first modulator includes an integrator configured to generate a first modulator output signal. The second modulator includes a second integrator configured to generate a second modulator output signal. The shared amplifier is configured to assist the first integrator integrating a difference between a first analog input signal and a first modulator output signal from the first modulator during a first period of time and to assist the second integrator integrate a difference between a second analog input signal and a second modulator output signal from the second modulator during a second period of time.
Public/Granted literature
- US20170041012A1 AMPLIFIER SHARING TECHNIQUE FOR POWER REDUCTION IN ANALOG-TO-DIGITAL CONVERTER Public/Granted day:2017-02-09
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