JPS52156541A - A-d converter - Google Patents

A-d converter

Info

Publication number
JPS52156541A
JPS52156541A JP7316276A JP7316276A JPS52156541A JP S52156541 A JPS52156541 A JP S52156541A JP 7316276 A JP7316276 A JP 7316276A JP 7316276 A JP7316276 A JP 7316276A JP S52156541 A JPS52156541 A JP S52156541A
Authority
JP
Japan
Prior art keywords
input terminal
converter
voltage
charging
conversion
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.)
Granted
Application number
JP7316276A
Other languages
Japanese (ja)
Other versions
JPS6056332B2 (en
Inventor
Kenji Kanamaru
Koshiro Iwasaki
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP51073162A priority Critical patent/JPS6056332B2/en
Priority to FR7719124A priority patent/FR2356316A1/en
Priority to DE2728150A priority patent/DE2728150C2/en
Publication of JPS52156541A publication Critical patent/JPS52156541A/en
Publication of JPS6056332B2 publication Critical patent/JPS6056332B2/en
Expired legal-status Critical Current

Links

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
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: The positive input terminal of the 2nd voltage comparator is connected to the output point of a charging-discharging circuit, and the reference voltage which is below the input analog voltage is applied to the negative input terminal, thereby improving A-D conversion.
COPYRIGHT: (C)1977,JPO&Japio
JP51073162A 1976-06-23 1976-06-23 A-D conversion circuit Expired JPS6056332B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP51073162A JPS6056332B2 (en) 1976-06-23 1976-06-23 A-D conversion circuit
FR7719124A FR2356316A1 (en) 1976-06-23 1977-06-22 Integrated circuit A:D converter - includes two voltage comparators receiving input and reference voltages to control output logic circuit
DE2728150A DE2728150C2 (en) 1976-06-23 1977-06-22 Analog / digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51073162A JPS6056332B2 (en) 1976-06-23 1976-06-23 A-D conversion circuit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP5229085A Division JPS60223226A (en) 1985-03-18 1985-03-18 Camera

Publications (2)

Publication Number Publication Date
JPS52156541A true JPS52156541A (en) 1977-12-27
JPS6056332B2 JPS6056332B2 (en) 1985-12-10

Family

ID=13510184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51073162A Expired JPS6056332B2 (en) 1976-06-23 1976-06-23 A-D conversion circuit

Country Status (3)

Country Link
JP (1) JPS6056332B2 (en)
DE (1) DE2728150C2 (en)
FR (1) FR2356316A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689127A (en) * 1979-12-21 1981-07-20 Canon Inc A/d converter
JPS5985128A (en) * 1982-11-08 1984-05-17 Hitachi Ltd Analog-digital converter
JPS6037872U (en) * 1983-08-19 1985-03-15 ロ−ム株式会社 Voltage-pulse width converter
JPS61184337U (en) * 1986-04-18 1986-11-17

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526958B2 (en) * 1987-12-29 1996-08-21 株式会社精工舎 Backlight detection circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2358378A1 (en) * 1973-11-23 1975-06-05 Bosch Gmbh Robert Pulse frequency generating A-D converter - uses DC voltage for conversion into pulse frequency with proportional pulse width

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689127A (en) * 1979-12-21 1981-07-20 Canon Inc A/d converter
JPS5985128A (en) * 1982-11-08 1984-05-17 Hitachi Ltd Analog-digital converter
JPH0366852B2 (en) * 1982-11-08 1991-10-18 Hitachi Ltd
JPS6037872U (en) * 1983-08-19 1985-03-15 ロ−ム株式会社 Voltage-pulse width converter
JPS61184337U (en) * 1986-04-18 1986-11-17
JPS6320191Y2 (en) * 1986-04-18 1988-06-06

Also Published As

Publication number Publication date
DE2728150A1 (en) 1977-12-29
JPS6056332B2 (en) 1985-12-10
DE2728150C2 (en) 1982-10-28
FR2356316A1 (en) 1978-01-20
FR2356316B1 (en) 1982-11-19

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