JPS57199323A - A/d converter - Google Patents

A/d converter

Info

Publication number
JPS57199323A
JPS57199323A JP8417281A JP8417281A JPS57199323A JP S57199323 A JPS57199323 A JP S57199323A JP 8417281 A JP8417281 A JP 8417281A JP 8417281 A JP8417281 A JP 8417281A JP S57199323 A JPS57199323 A JP S57199323A
Authority
JP
Japan
Prior art keywords
reference voltage
resistors
resistor
converter
parallel
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
JP8417281A
Other languages
Japanese (ja)
Inventor
Kenichi Torii
Toshiyasu Yoshizawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8417281A priority Critical patent/JPS57199323A/en
Publication of JPS57199323A publication Critical patent/JPS57199323A/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 highly accurate reference voltage for a parallel type A/D converter, by connecting a compensating resistor in parallel between arbitrary resistor connecting points in a series resistance circuit generating a reference voltage. CONSTITUTION:A plurality of resistors are connected in series and reference voltages V1-V255 are generated from each connecting point. The plurality of resistors are sectioned in blocks and compensation resistors Ra-Rh are connected respectively among blocks Rx1-Rx8. Each compensating resistor is set so that a current flowing to the comparator from the resistor connecting points is taken into consideration and a desired reference voltage is obtained. Through the parallel connection of the compensation resistors, the fluctuation of the connecting point voltage can be suppressed. Thus, errors in each reference voltage can sufficiently be suppressed. Then, highly accurate reference voltages for a parallel type A/D converter can be obtained.
JP8417281A 1981-06-01 1981-06-01 A/d converter Pending JPS57199323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8417281A JPS57199323A (en) 1981-06-01 1981-06-01 A/d converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8417281A JPS57199323A (en) 1981-06-01 1981-06-01 A/d converter

Publications (1)

Publication Number Publication Date
JPS57199323A true JPS57199323A (en) 1982-12-07

Family

ID=13823069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8417281A Pending JPS57199323A (en) 1981-06-01 1981-06-01 A/d converter

Country Status (1)

Country Link
JP (1) JPS57199323A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60189329A (en) * 1984-02-15 1985-09-26 シーメンス、アクチエンゲゼルシヤフト Analog/digital converter
JPH01265619A (en) * 1988-01-28 1989-10-23 General Electric Co <Ge> Analog/digital converter with compensated integral linear error and its operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60189329A (en) * 1984-02-15 1985-09-26 シーメンス、アクチエンゲゼルシヤフト Analog/digital converter
JPH01265619A (en) * 1988-01-28 1989-10-23 General Electric Co <Ge> Analog/digital converter with compensated integral linear error and its operation

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