WO2005055500A3 - Calibrating capacitor mismatch in a pipe-line adc - Google Patents

Calibrating capacitor mismatch in a pipe-line adc Download PDF

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Publication number
WO2005055500A3
WO2005055500A3 PCT/US2004/040033 US2004040033W WO2005055500A3 WO 2005055500 A3 WO2005055500 A3 WO 2005055500A3 US 2004040033 W US2004040033 W US 2004040033W WO 2005055500 A3 WO2005055500 A3 WO 2005055500A3
Authority
WO
WIPO (PCT)
Prior art keywords
mismatch
pipe
capacitor mismatch
capacitor
line adc
Prior art date
Application number
PCT/US2004/040033
Other languages
French (fr)
Other versions
WO2005055500A2 (en
Inventor
Visvesvaraya A Pentakota
Jagannathan Venkataraman
Vineet Mishra
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Priority to JP2006541495A priority Critical patent/JP2007521767A/en
Publication of WO2005055500A2 publication Critical patent/WO2005055500A2/en
Publication of WO2005055500A3 publication Critical patent/WO2005055500A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing
    • H03M1/1071—Measuring or testing
    • H03M1/109—Measuring or testing for dc performance, i.e. static testing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
    • H03M1/16—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps
    • H03M1/164—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps the steps being performed sequentially in series-connected stages
    • H03M1/167—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps the steps being performed sequentially in series-connected stages all stages comprising simultaneous converters
    • H03M1/168—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps the steps being performed sequentially in series-connected stages all stages comprising simultaneous converters and delivering the same number of bits

Abstract

An on-chip capacitor circuit which can dynamically measure the capacitor mismatch in an ADC (102) usmg sampling capacitors to simple an input signal (101) and a feedback capacitor for amplification The measured values can be used to generate accurate digit codes (121A-121N) representing analog signal samples The calibration circuit connects the capacitors to various voltage levels an measures the mismatch levels by examining various signals generated in such situations.
PCT/US2004/040033 2003-11-28 2004-11-29 Calibrating capacitor mismatch in a pipe-line adc WO2005055500A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006541495A JP2007521767A (en) 2003-11-28 2004-11-29 Calibration of capacitor mismatch in pipeline ADC

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/722,416 2003-11-28
US10/722,416 US6891486B1 (en) 2003-11-28 2003-11-28 Calibrating capacitor mismatch in a pipeline ADC

Publications (2)

Publication Number Publication Date
WO2005055500A2 WO2005055500A2 (en) 2005-06-16
WO2005055500A3 true WO2005055500A3 (en) 2007-11-08

Family

ID=34552745

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/040033 WO2005055500A2 (en) 2003-11-28 2004-11-29 Calibrating capacitor mismatch in a pipe-line adc

Country Status (3)

Country Link
US (1) US6891486B1 (en)
JP (1) JP2007521767A (en)
WO (1) WO2005055500A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7091891B2 (en) * 2004-04-28 2006-08-15 Analog Devices, Inc. Calibration of analog to digital converter by means of multiplexed stages
US7358801B2 (en) * 2004-08-16 2008-04-15 Texas Instruments Incorporated Reducing noise and/or power consumption in a switched capacitor amplifier sampling a reference voltage
JP2006173807A (en) * 2004-12-13 2006-06-29 Sanyo Electric Co Ltd A/d converter
US7002506B1 (en) * 2004-12-23 2006-02-21 Texas Instruments Incorporated Providing pipe line ADC with acceptable bit error and power efficiency combination
US7088273B1 (en) * 2005-05-30 2006-08-08 Texas Instruments Incorporated Reducing noise in switched capacitor amplifier circuit
WO2009091620A1 (en) * 2008-01-17 2009-07-23 President And Fellows Of Harvard College Digital background calibration in pipelined adcs
US7825837B1 (en) 2008-09-05 2010-11-02 National Semiconductor Corporation Background calibration method for analog-to-digital converters
US7830159B1 (en) * 2008-10-10 2010-11-09 National Semiconductor Corporation Capacitor mismatch measurement method for switched capacitor circuits
US8451154B2 (en) * 2008-10-22 2013-05-28 Integrated Device Technology, Inc. Pipelined ADC calibration
US8330631B2 (en) 2009-03-06 2012-12-11 National Semiconductor Corporation Background calibration method for fixed gain amplifiers
US8686744B2 (en) 2010-07-20 2014-04-01 Texas Instruments Incorporated Precision measurement of capacitor mismatch
TWI459723B (en) * 2012-02-03 2014-11-01 Nat Univ Chung Cheng Zero-crossing-based analog/digital convertor with current mismatch correction
CN106571821B (en) * 2015-10-13 2020-10-09 上海贝岭股份有限公司 Foreground calibration method of pipeline ADC (analog to digital converter)
CN107196656B (en) * 2016-03-15 2020-11-06 联发科技（新加坡）私人有限公司 Signal calibration circuit and signal calibration method
US10536161B1 (en) * 2018-10-08 2020-01-14 Analog Devices, Inc. Noise shaping pipeline analog to digital converters
US11038515B2 (en) 2019-05-13 2021-06-15 Analog Devices, Inc. Noise shaping algorithmic analog-to-digital converter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825316A (en) * 1995-04-04 1998-10-20 Siemens Aktiengesellschaft Method for the self-calibration of an A/D or D/A converter in which the weighted references of the at least one main network are partially calibrated once per calibration cycle
US6184809B1 (en) * 1998-08-19 2001-02-06 Texas Instruments Incorporated User transparent self-calibration technique for pipelined ADC architecture
US6489914B1 (en) * 2001-12-04 2002-12-03 Motorola, Inc. RSD analog to digital converter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027373A1 (en) * 1993-05-12 1994-11-24 Analog Devices, Incorporated Algorithmic a/d converter with digitally calibrated output
US6169502B1 (en) * 1998-05-08 2001-01-02 Cirrus Logic, Inc. Pipelined analog-to-digital converter (ADC) systems, methods, and computer program products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825316A (en) * 1995-04-04 1998-10-20 Siemens Aktiengesellschaft Method for the self-calibration of an A/D or D/A converter in which the weighted references of the at least one main network are partially calibrated once per calibration cycle
US6184809B1 (en) * 1998-08-19 2001-02-06 Texas Instruments Incorporated User transparent self-calibration technique for pipelined ADC architecture
US6489914B1 (en) * 2001-12-04 2002-12-03 Motorola, Inc. RSD analog to digital converter

Also Published As

Publication number Publication date
US20050116847A1 (en) 2005-06-02
US6891486B1 (en) 2005-05-10
JP2007521767A (en) 2007-08-02
WO2005055500A2 (en) 2005-06-16

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