JPH0542032B2 - - Google Patents

Info

Publication number
JPH0542032B2
JPH0542032B2 JP14523389A JP14523389A JPH0542032B2 JP H0542032 B2 JPH0542032 B2 JP H0542032B2 JP 14523389 A JP14523389 A JP 14523389A JP 14523389 A JP14523389 A JP 14523389A JP H0542032 B2 JPH0542032 B2 JP H0542032B2
Authority
JP
Japan
Prior art keywords
signal
circuit
output
line
analog
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP14523389A
Other languages
English (en)
Japanese (ja)
Other versions
JPH02138609A (ja
Inventor
Kaoru Takasuka
Kenichi Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Microdevices Corp
Original Assignee
Asahi Kasei Microdevices Corp
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 Asahi Kasei Microdevices Corp filed Critical Asahi Kasei Microdevices Corp
Publication of JPH02138609A publication Critical patent/JPH02138609A/ja
Publication of JPH0542032B2 publication Critical patent/JPH0542032B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/43—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/454—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP1145233A 1988-06-09 1989-06-09 アナログ演算回路 Granted JPH02138609A (ja)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP63-140492 1988-06-09
JP14049288 1988-06-09
JP19068388 1988-08-01
JP63-190683 1988-08-01
JP63-193385 1988-08-04
JP19338588 1988-08-04
JP19338488 1988-08-04
JP63-193384 1988-08-04

Publications (2)

Publication Number Publication Date
JPH02138609A JPH02138609A (ja) 1990-05-28
JPH0542032B2 true JPH0542032B2 (en]) 1993-06-25

Family

ID=27472303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1145233A Granted JPH02138609A (ja) 1988-06-09 1989-06-09 アナログ演算回路

Country Status (4)

Country Link
US (1) US5150324A (en])
EP (1) EP0381764B1 (en])
JP (1) JPH02138609A (en])
WO (1) WO1989012280A1 (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025800A1 (fr) * 1995-02-13 1996-08-22 Hitachi, Ltd. Convertisseur a/n du type surechantillonneur

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04243326A (ja) * 1991-01-18 1992-08-31 Nec Corp オーバサンプリングｄ−ａ変換器
JP2760199B2 (ja) * 1992-01-22 1998-05-28 日本電気株式会社 圧伸用回路
US5767750A (en) * 1992-03-30 1998-06-16 Kabushiki Kaisha Toshiba Modulator
JP3419484B2 (ja) * 1992-03-30 2003-06-23 株式会社東芝 変調器、送信器
US5442575A (en) * 1993-05-19 1995-08-15 Forschungszentrum Julich Gmbh Scanning analog-to-digital converter operating under the subranging principle
US5465227A (en) * 1993-10-14 1995-11-07 Simmonds Precision Products, Inc. Real time auto-correlation filter method and apparatus
US6035005A (en) * 1997-02-10 2000-03-07 Motorola, Inc. Receiver with baseband I and Q demodulator
US5901176A (en) * 1997-04-29 1999-05-04 Hewlett-Packard Company Delta-sigma pulse width modulator control circuit
US5933453A (en) * 1997-04-29 1999-08-03 Hewlett-Packard Company Delta-sigma pulse width modulator control circuit
US5896056A (en) * 1997-12-01 1999-04-20 Texmate, Inc. Root-mean-square converter method and circuit
JP2001237706A (ja) * 2000-02-23 2001-08-31 Hitachi Ltd Δς型ａｄ変換器
US6516291B2 (en) 2000-12-13 2003-02-04 Linear Technology Corporation RMS-to-DC converter with fault detection and recovery
DE10101759A1 (de) * 2001-01-16 2002-05-02 Siemens Ag Schaltung zur Bildung des Verhältnisses zweier Eingangssignale
US7248628B2 (en) 2001-03-02 2007-07-24 Shaeffer Derek K Method and apparatus for a programmable filter
US6587061B2 (en) 2001-07-03 2003-07-01 Linear Technology Corporation Analog computation circuits using synchronous demodulation and power meters and energy meters using the same
JP4220843B2 (ja) * 2003-06-27 2009-02-04 パナソニック株式会社 低域ろ波回路およびフィードバックシステム
US7142142B2 (en) * 2004-02-25 2006-11-28 Nelicor Puritan Bennett, Inc. Multi-bit ADC with sigma-delta modulation
JP2006217539A (ja) * 2005-02-07 2006-08-17 Fujitsu Ltd スペクトラム拡散クロック発生回路およびスペクトラム拡散クロック発生回路の制御方法
KR100871690B1 (ko) * 2006-07-12 2008-12-05 삼성전자주식회사 디지털 제어가 가능한 필터 시스템 및 필터링 방법
US8704581B2 (en) 2007-04-23 2014-04-22 Qualcomm Incorporated Switched capacitor integration and summing circuits
US7646325B2 (en) * 2007-09-27 2010-01-12 Nanoamp Mobile, Inc. Analog to digital converter
EP2382709B1 (en) * 2009-01-28 2016-08-17 ST-Ericsson SA Method and system for measuring a time constant of an integrated circuit, and integrated circuit provided with such a system
RU2482604C1 (ru) * 2011-11-29 2013-05-20 Николай Михайлович Алексеев Способ сжатия цифровой информации с помощью эталонного электрического сигнала
US8779957B2 (en) 2012-08-02 2014-07-15 Qualcomm Incorporated Low distortion feed-forward delta-sigma modulator
US9484950B1 (en) * 2014-10-27 2016-11-01 Arrowhead Center, Inc. Hardware efficient digital signal processing for on-the-fly delta sigma bit stream linear operator and compressor circuits
CN113094022B (zh) * 2021-06-09 2021-08-20 广东希荻微电子股份有限公司 一种模拟乘法器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920151B2 (ja) * 1978-12-19 1984-05-11 ソニ−・テクトロニクス株式会社 アナログ乗除算回路
US4422155A (en) * 1981-04-01 1983-12-20 American Microsystems, Inc. Multiplier/adder circuit
US4509037A (en) * 1981-06-12 1985-04-02 Gould Inc. Enhanced delta modulation encoder
US4439756A (en) * 1982-01-20 1984-03-27 International Telephone And Telegraph Corporation Delta-Sigma modulator with switch capacitor implementation
FR2533382B1 (fr) * 1982-09-21 1988-01-22 Senn Patrice Codeur de type delta-sigma, a double integration et applications de ce codeur a une voie de transmission de type mic et a la mesure de tensions continues
JPS60189580A (ja) * 1984-03-09 1985-09-27 Mitsubishi Electric Corp 人工衛星搭載用アナログ型除算器
US4866442A (en) * 1987-06-01 1989-09-12 Steim Joseph M Analog to digital converter employing delta-sigma modulation
US4939516B1 (en) * 1988-06-13 1993-10-26 Crystal Semiconductor Corporation Chopper stabilized delta-sigma analog-to-digital converter
JPH0663683A (ja) * 1992-08-18 1994-03-08 Mitsubishi Heavy Ind Ltd 鋳型の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025800A1 (fr) * 1995-02-13 1996-08-22 Hitachi, Ltd. Convertisseur a/n du type surechantillonneur

Also Published As

Publication number Publication date
JPH02138609A (ja) 1990-05-28
WO1989012280A1 (en) 1989-12-14
EP0381764A4 (en) 1992-03-04
EP0381764B1 (en) 1996-02-07
EP0381764A1 (en) 1990-08-16
US5150324A (en) 1992-09-22

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