Invention Grant
- Patent Title: Driver for switched capacitor circuits
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Application No.: US14729341Application Date: 2015-06-03
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Publication No.: US09614519B2Publication Date: 2017-04-04
- Inventor: Fabio Sebastiano
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Agent Rajeev Madnawat
- Priority: EP14175054 20140630
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K17/56 ; G11C27/02 ; H03F3/00

Abstract:
There is described a driver for a switched capacitor circuit (230, 330), the driver comprising (a) a voltage amplifier (210, 310) comprising a signal input (212, 312), a feedback input (214, 314) and an amplifier output (216, 316), and (b) a feedback network (220) coupled between the amplifier output (216, 316) and the feedback input (214, 314). The feedback network comprises a track-and-hold circuit (222) adapted to mask a voltage dip occurring at the amplifier output (216, 316) at the beginning of a switched capacitor circuit charging phase. There is also described a switched capacitor circuit comprising such a driver, a sensor device, and a method of driving a switched capacitor circuit.
Public/Granted literature
- US20150381165A1 DRIVER FOR SWITCHED CAPACITOR CIRCUITS Public/Granted day:2015-12-31
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