Invention Grant
- Patent Title: Compensation circuit for delta-sigma modulators, corresponding device and method
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Application No.: US17677511Application Date: 2022-02-22
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Publication No.: US11637562B2Publication Date: 2023-04-25
- Inventor: Roberto Modaffari , Paolo Pesenti , Germano Nicollini
- Applicant: STMICROELECTRONICS S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMICROELECTRONICS S.r.l.
- Current Assignee: STMICROELECTRONICS S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed Intellectual Property Law Group LLP
- Priority: IT102020000001918 20200131
- Main IPC: H03M3/00
- IPC: H03M3/00 ; H03M3/02

Abstract:
A delta-sigma modulation circuit has a sampling period and, in operation, generates a delta-sigma modulated signal based on the analog input signal. The delta-sigma modulation circuit includes: a first integrator; an analog-to-digital converter; a feedback-loop coupled between an input of the first integrator and the output interface; a second integrator coupled between the first integrator and the analog-to-digital converter. The delta-sigma modulation circuit has loop-delay compensation circuitry having a plurality of switches. The loop delay compensation circuitry, in operation, controls the plurality of switches based on a time interval of a duration of half the sampling period and generates a loop-delay compensation signal.
Public/Granted literature
- US20220173751A1 COMPENSATION CIRCUIT FOR DELTA-SIGMA MODULATORS, CORRESPONDING DEVICE AND METHOD Public/Granted day:2022-06-02
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