JPS5658323A - Analog-digital converter - Google Patents

Analog-digital converter

Info

Publication number
JPS5658323A
JPS5658323A JP13496879A JP13496879A JPS5658323A JP S5658323 A JPS5658323 A JP S5658323A JP 13496879 A JP13496879 A JP 13496879A JP 13496879 A JP13496879 A JP 13496879A JP S5658323 A JPS5658323 A JP S5658323A
Authority
JP
Japan
Prior art keywords
comparators
auxiliary
operated
compared
given number
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.)
Pending
Application number
JP13496879A
Other languages
Japanese (ja)
Inventor
Michihiro Inoue
Toyoki Takemoto
Haruyasu Yamada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13496879A priority Critical patent/JPS5658323A/en
Priority to US06/123,646 priority patent/US4417233A/en
Publication of JPS5658323A publication Critical patent/JPS5658323A/en
Pending 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
    • H03M1/34—Analogue value compared with reference values
    • H03M1/36—Analogue value compared with reference values simultaneously only, i.e. parallel type
    • H03M1/361—Analogue value compared with reference values simultaneously only, i.e. parallel type having a separate comparator and reference value for each quantisation level, i.e. full flash converter type

Landscapes

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

Abstract

PURPOSE:To realize an A/D converter with high accuracy and less power consumption without losing high speed, by using auxiliary comparators so that the operating current of other comparators can be reduced through a part of comparators to be operated by looking a certain time. CONSTITUTION:A plurality of comparators C1'-C63' having a reference voltage corresponding to each quantized level and in parallel location, and auxiliary comparators SC1-SC3 provided at each comparator group after the division of the comparators into a given number, are provided. Further, input signals are compared by the auxiliary comparators SC1-SC3 and also compared by comparator groups split into a given number adjacent each other, which are operated with the result of comparison of the auxiliary comparators SC1-SC3.
JP13496879A 1979-02-28 1979-10-18 Analog-digital converter Pending JPS5658323A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP13496879A JPS5658323A (en) 1979-10-18 1979-10-18 Analog-digital converter
US06/123,646 US4417233A (en) 1979-02-28 1980-02-22 Fully parallel threshold type analog-to-digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13496879A JPS5658323A (en) 1979-10-18 1979-10-18 Analog-digital converter

Publications (1)

Publication Number Publication Date
JPS5658323A true JPS5658323A (en) 1981-05-21

Family

ID=15140798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13496879A Pending JPS5658323A (en) 1979-02-28 1979-10-18 Analog-digital converter

Country Status (1)

Country Link
JP (1) JPS5658323A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589426A (en) * 1981-07-10 1983-01-19 Sony Corp Analog-to-digital converter
JPS5815324A (en) * 1981-07-21 1983-01-28 Sony Corp Analog-to-digital converter
JPS5884534A (en) * 1981-11-16 1983-05-20 Sony Corp Analog-to-digital converter
JPS5959035U (en) * 1982-10-09 1984-04-17 ソニー株式会社 A-D converter
US4596978A (en) * 1983-03-18 1986-06-24 Nec Parallel comparison type analog to digital converter
JPH05199116A (en) * 1991-11-07 1993-08-06 Kawasaki Steel Corp A/d converter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589426A (en) * 1981-07-10 1983-01-19 Sony Corp Analog-to-digital converter
JPH0239136B2 (en) * 1981-07-10 1990-09-04 Sony Corp
JPS5815324A (en) * 1981-07-21 1983-01-28 Sony Corp Analog-to-digital converter
JPH0239137B2 (en) * 1981-07-21 1990-09-04 Sony Corp
JPS5884534A (en) * 1981-11-16 1983-05-20 Sony Corp Analog-to-digital converter
JPH0311131B2 (en) * 1981-11-16 1991-02-15 Sony Corp
JPS5959035U (en) * 1982-10-09 1984-04-17 ソニー株式会社 A-D converter
US4596978A (en) * 1983-03-18 1986-06-24 Nec Parallel comparison type analog to digital converter
JPH05199116A (en) * 1991-11-07 1993-08-06 Kawasaki Steel Corp A/d converter

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