KR920005362B1 - 아날로그-디지털 변환회로 - Google Patents
아날로그-디지털 변환회로 Download PDFInfo
- Publication number
- KR920005362B1 KR920005362B1 KR1019890011493A KR890011493A KR920005362B1 KR 920005362 B1 KR920005362 B1 KR 920005362B1 KR 1019890011493 A KR1019890011493 A KR 1019890011493A KR 890011493 A KR890011493 A KR 890011493A KR 920005362 B1 KR920005362 B1 KR 920005362B1
- Authority
- KR
- South Korea
- Prior art keywords
- analog
- circuit
- potential
- channel transistor
- terminal
- 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
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Classifications
-
- 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
-
- 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
- H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
- H03M1/129—Means for adapting the input signal to the range the converter can handle, e.g. limiting, pre-scaling ; Out-of-range indication
- H03M1/1295—Clamping, i.e. adjusting the DC level of the input signal to a predetermined value
-
- 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
- H03M1/1205—Multiplexed conversion systems
- H03M1/122—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages
- H03M1/1225—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages using time-division multiplexing
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
Description
Claims (4)
- 복수의 아날로그 입력단자(CH1, CH2)에 각각 인가되는 전압레벨을 선택해서 1개의 공통단자(a)에 공급해 주는 아날로그 스위치수단(P1, N1, P2, N2)과, 상기 복수의 아날로그 입력단자(CH1, CH2)로 부터 상기 공통단자(a)에 대한 전압레벨의 공급이 금지되는 기간이 지난 다음 상기 아날로그 입력단자(CH1, CH2)에 대한 변경시키는 제어수단(12), 상기 공통단자(a)에 대한 전압레벨의 공급이 금지되는 기간중에 상기 공통단자(a)를 소정의 전압레벨로 설정해 주는 초기전위 설정회로(11, 21, 31) 및, 상기 공통단자(a)의 전압과 기준전압을 비교하는 비교기(1)를 구비하여 구성된 것을 특징으로 하는 아날로그-디지털 변환회로.
- 제1항에 있어서, 상기 초기전위 설정회로(11)는 게이트단자에 제어신호(øPR)가 입력되면서 소오스단자에는 고전위의 전원(VDD)이 접속된 N챈널트랜지스터(N11)와 이 N챈널 트랜지스터(N11)에 접속되어 있으면서 게이트단자와 드레인단자가 상호 접속된 P챈널 트랜지스터(P11)로 구성된 것을 특징으로 하는 아날로그-디지털 변환회로.
- 제1항에 있어서, 상기 초기전위 설정회로(21)는 게이트단자에 제어신호(øPR)가 입력되면서 소오스단자에는 고전위의 전원(VDD)이 접속된 N챈널트랜지스터(N21)와 이 N챈널 트랜지스터(N21)와 직렬로 접속되어 있으면서 드레인단자가 접지에 접속된 N챈널 트랜지스터(N22)의 직렬회로로 구성된 것을 특징으로 하는 아날로그-디지털 변환회로.
- 제1항에 있어서, 상기 초기전위 설정회로(11)는 게이트단자에 제어신호(øPR)가 입력되는 N챈널트랜지스터(N31)와 이 N챈널 트랜지스터(N31)와 병렬로 접속되어 있으면서 게이트단자에 상기 제어신호(øPR)가 인버터(32)를 매개해서 반전되어 입력되는 P챈널 트랜지스터(P31)로 구성된 아날로그 스위치를 매개해서 디지털-아날로그 변환회로(2)의 출력전위를 상기 공통단자(a)에 반영시키도록 된 것을 특징으로 하는 아날로그-디지털 변환회로.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP88-200009 | 1988-08-12 | ||
JP63-200009 | 1988-08-12 | ||
JP63200009A JP2577450B2 (ja) | 1988-08-12 | 1988-08-12 | アナログ−ディジタル変換回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900004116A KR900004116A (ko) | 1990-03-27 |
KR920005362B1 true KR920005362B1 (ko) | 1992-07-02 |
Family
ID=16417276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890011493A Expired KR920005362B1 (ko) | 1988-08-12 | 1989-08-12 | 아날로그-디지털 변환회로 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4973975A (ko) |
EP (1) | EP0354552B1 (ko) |
JP (1) | JP2577450B2 (ko) |
KR (1) | KR920005362B1 (ko) |
DE (1) | DE68927655T2 (ko) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69026740D1 (de) * | 1989-02-28 | 1996-06-05 | Fujitsu Ltd | Fehler absorbierendes System in einem neuronalen Rechner |
US5142284A (en) * | 1990-04-25 | 1992-08-25 | Tektronix, Inc. | Sample and hold with intermediate reset voltage outside of the magnitude range of the input |
US5252976A (en) * | 1990-07-26 | 1993-10-12 | Fujitsu Limited | Sequential comparison type analog-to-digital converter |
US5247299A (en) * | 1992-06-02 | 1993-09-21 | Hewlett-Packard Company | Successive approximation A/D converter correcting for charge injection offset |
KR100296832B1 (ko) * | 1992-11-13 | 2001-10-24 | 요트.게.아. 롤페즈 | 이산시간신호처리시스템 |
JP2937027B2 (ja) * | 1994-09-07 | 1999-08-23 | 日本電気株式会社 | コンパレータ |
JPH09134970A (ja) * | 1995-09-08 | 1997-05-20 | Sharp Corp | サンプリング回路および画像表示装置 |
DE10050706C2 (de) * | 2000-10-13 | 2003-07-31 | Infineon Technologies Ag | Schaltungsanordnung zur Umwandlung eines Eingangsstromsignals in ein entsprechendes digitales Ausgangssignal |
US8557093B2 (en) | 2007-03-22 | 2013-10-15 | Sunpower Corporation | Deposition system with electrically isolated pallet and anode assemblies |
JP2011077847A (ja) * | 2009-09-30 | 2011-04-14 | Renesas Electronics Corp | A/dコンバータ及びそのオープン検出方法 |
SG11201400401QA (en) * | 2011-09-06 | 2014-08-28 | Univ Singapore | An analog-to-digital converter for a multi-channel signal acquisition system |
US9997254B2 (en) | 2016-07-13 | 2018-06-12 | Nxp Usa, Inc. | Sample-and-hold circuit |
US9984763B1 (en) * | 2016-11-30 | 2018-05-29 | Nxp Usa, Inc. | Sample and hold circuit |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1403683A (fr) * | 1964-04-14 | 1965-06-25 | Labo Cent Telecommunicat | Dispositif de mise en mémoire d'informations analogiques |
US3846787A (en) * | 1972-08-17 | 1974-11-05 | Itt | Time division multiplexer employing digital gates and a digital-to-analog converter |
US4097753A (en) * | 1976-04-02 | 1978-06-27 | International Business Machines Corporation | Comparator circuit for a C-2C A/D and D/A converter |
JPS58170213A (ja) * | 1982-03-31 | 1983-10-06 | Toshiba Corp | 電圧比較回路 |
DE3472018D1 (en) * | 1983-12-26 | 1988-07-14 | Renault | Process and apparatus for the determination of the coordinates of a contact point on a semi-analog sensitive surface |
US4618848A (en) * | 1984-12-14 | 1986-10-21 | Texas Instruments Incorporated | Analog to digital converter circuit |
-
1988
- 1988-08-12 JP JP63200009A patent/JP2577450B2/ja not_active Expired - Fee Related
-
1989
- 1989-08-08 US US07/390,770 patent/US4973975A/en not_active Expired - Lifetime
- 1989-08-09 EP EP89114727A patent/EP0354552B1/en not_active Expired - Lifetime
- 1989-08-09 DE DE68927655T patent/DE68927655T2/de not_active Expired - Fee Related
- 1989-08-12 KR KR1019890011493A patent/KR920005362B1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4973975A (en) | 1990-11-27 |
JPH0250619A (ja) | 1990-02-20 |
JP2577450B2 (ja) | 1997-01-29 |
DE68927655T2 (de) | 1997-05-28 |
EP0354552B1 (en) | 1997-01-15 |
KR900004116A (ko) | 1990-03-27 |
EP0354552A3 (en) | 1992-04-08 |
DE68927655D1 (de) | 1997-02-27 |
EP0354552A2 (en) | 1990-02-14 |
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