JPS5672527A - Parallel analog-to-digital converter - Google Patents

Parallel analog-to-digital converter

Info

Publication number
JPS5672527A
JPS5672527A JP15040179A JP15040179A JPS5672527A JP S5672527 A JPS5672527 A JP S5672527A JP 15040179 A JP15040179 A JP 15040179A JP 15040179 A JP15040179 A JP 15040179A JP S5672527 A JPS5672527 A JP S5672527A
Authority
JP
Japan
Prior art keywords
point
quantitizing
input
digital converter
case
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
JP15040179A
Other languages
Japanese (ja)
Inventor
Michihiro Inoue
Akira Matsuzawa
Toyoki Takemoto
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 JP15040179A priority Critical patent/JPS5672527A/en
Publication of JPS5672527A publication Critical patent/JPS5672527A/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
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
    • H03M1/0612—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic over the full range of the converter, e.g. for correcting differential non-linearity
    • 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
    • H03M1/362—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 the reference values being generated by a resistive voltage divider
    • H03M1/365—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 the reference values being generated by a resistive voltage divider the voltage divider being a single resistor string

Landscapes

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

Abstract

PURPOSE:To obtain an A/D converter of high accuracy without deteriorating its high speed property, by correcting the reference voltage of the comparator at proper internals, by means of the reference voltage source which has been provided separately. CONSTITUTION:The second reference resistors r1-r8 are provided in parallel with the first reference resistances R1-R1023. And when one input of the current amplifying circuit D1 is connected to the point A, the other input is connected to the point A', and also the output terminal is connected to the point A', the current of the reference resistances R1-R1023 can be controlled so that the potential of the point A becomes equal to that of the point A'. The circuit D2 is also performed in the same way. In this case, since the maximum errors is proportional to approximately square of quantitizing number, the error becomes extremely small in case when the quantitizing number has been divided into eight.
JP15040179A 1979-11-19 1979-11-19 Parallel analog-to-digital converter Pending JPS5672527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15040179A JPS5672527A (en) 1979-11-19 1979-11-19 Parallel analog-to-digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15040179A JPS5672527A (en) 1979-11-19 1979-11-19 Parallel analog-to-digital converter

Publications (1)

Publication Number Publication Date
JPS5672527A true JPS5672527A (en) 1981-06-16

Family

ID=15496160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15040179A Pending JPS5672527A (en) 1979-11-19 1979-11-19 Parallel analog-to-digital converter

Country Status (1)

Country Link
JP (1) JPS5672527A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106915A (en) * 1981-12-21 1983-06-25 Sony Corp A/d converter
JPS58138122A (en) * 1982-02-12 1983-08-16 Matsushita Electric Ind Co Ltd Parallel type analog-digital converter
JPS5911025A (en) * 1982-07-12 1984-01-20 Hitachi Ltd Resistance circuit in semiconductor integrated circuit
JPS59140723A (en) * 1983-01-31 1984-08-13 Matsushita Electric Ind Co Ltd Parallel type analog and digital converter
JPS59120619U (en) * 1983-02-03 1984-08-14 株式会社ボッシュオートモーティブ　システム Automotive air conditioner control device
JPS6096925A (en) * 1983-11-01 1985-05-30 Matsushita Electronics Corp Signal converting circuit
JP2007513552A (en) * 2003-12-02 2007-05-24 アトメル グルノーブル High speed analog-to-digital converter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106915A (en) * 1981-12-21 1983-06-25 Sony Corp A/d converter
JPS58138122A (en) * 1982-02-12 1983-08-16 Matsushita Electric Ind Co Ltd Parallel type analog-digital converter
JPS5911025A (en) * 1982-07-12 1984-01-20 Hitachi Ltd Resistance circuit in semiconductor integrated circuit
JPS59140723A (en) * 1983-01-31 1984-08-13 Matsushita Electric Ind Co Ltd Parallel type analog and digital converter
JPS59120619U (en) * 1983-02-03 1984-08-14 株式会社ボッシュオートモーティブ　システム Automotive air conditioner control device
JPS6096925A (en) * 1983-11-01 1985-05-30 Matsushita Electronics Corp Signal converting circuit
JPH0578214B2 (en) * 1983-11-01 1993-10-28 Matsushita Electronics Corp
JP2007513552A (en) * 2003-12-02 2007-05-24 アトメル グルノーブル High speed analog-to-digital converter

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