Invention Grant
- Patent Title: Switched-capacitor MDAC with common-mode hop regulation
- Patent Title (中): 具有共模跳变调制的开关电容MDAC
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Application No.: US13399843Application Date: 2012-02-17
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Publication No.: US08643527B2Publication Date: 2014-02-04
- Inventor: Stephen Robert Kosic
- Applicant: Stephen Robert Kosic
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Kenyon & Kenyon, LLP
- Main IPC: H03M1/38
- IPC: H03M1/38

Abstract:
A switched-capacitor digital-to-analog converter (DAC) circuit can include first and second sets of capacitors, an amplifier, a reference signal generator and interconnecting switches. The first and second sets of capacitors can be connected to first and second analog input signals responsive to a first clock signal, and to first and second reference voltages responsive to a second clock signal and digital control signals. The amplifier can be connected to the first and second sets of capacitors in response to the second clock signal. The reference signal generator can provide to the first and second sets of capacitors, responsive to the first clock signal, a common-mode reference signal to set a common-mode voltage at inputs of the amplifier, and can include components to replicate the operation of the first and second sets of capacitors. The switched-capacitor DAC circuit can be used to implement a multiplying DAC in a pipeline analog-to-digital converter.
Public/Granted literature
- US20130214944A1 SWITCHED-CAPACITOR MDAC WITH COMMON-MODE HOP REGULATION Public/Granted day:2013-08-22
Information query
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