JPS57124932A - Sequential comparison type a-d converter - Google Patents

Sequential comparison type a-d converter

Info

Publication number
JPS57124932A
JPS57124932A JP988681A JP988681A JPS57124932A JP S57124932 A JPS57124932 A JP S57124932A JP 988681 A JP988681 A JP 988681A JP 988681 A JP988681 A JP 988681A JP S57124932 A JPS57124932 A JP S57124932A
Authority
JP
Japan
Prior art keywords
converter
register
output
order
low
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
JP988681A
Other languages
Japanese (ja)
Inventor
Yukihiko Haikawa
Hitoshi Kajiwara
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.)
ARUPAIN KK
Alpine Electronics Inc
Original Assignee
ARUPAIN KK
Alpine Electronics Inc
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 ARUPAIN KK, Alpine Electronics Inc filed Critical ARUPAIN KK
Priority to JP988681A priority Critical patent/JPS57124932A/en
Publication of JPS57124932A publication Critical patent/JPS57124932A/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
    • H03M1/10—Calibration or testing

Abstract

PURPOSE:To achieve a converter of multi-bit and low cost, by correcting a converted digital value for output, in a sequential comparison type A/D converter using two D/A converters of low accuracy as high-order and low-order digits. CONSTITUTION:Clocks of a clock generator 14 are applied to a register 13 in n bits, the outut of the register 13 is applied to a high-order D/A converter 11 and a low-order D/A converter 15, and the analog input at a terminal P3 is compared with the output of the converters 11, 15 at a comparator 12. This compared output is applied to the register 13, this operation is sequentially compared and a digital value is obtained at the register 13. When the conversion is finished, the generator 14 transmits the operation clock to an operator 17, the operator 17 corrects the digital value of the register 13 with the correction value stored in a memory 16 and an output digital signal is obtained at a terminal P4.
JP988681A 1981-01-26 1981-01-26 Sequential comparison type a-d converter Pending JPS57124932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP988681A JPS57124932A (en) 1981-01-26 1981-01-26 Sequential comparison type a-d converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP988681A JPS57124932A (en) 1981-01-26 1981-01-26 Sequential comparison type a-d converter

Publications (1)

Publication Number Publication Date
JPS57124932A true JPS57124932A (en) 1982-08-04

Family

ID=11732622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP988681A Pending JPS57124932A (en) 1981-01-26 1981-01-26 Sequential comparison type a-d converter

Country Status (1)

Country Link
JP (1) JPS57124932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6479686A (en) * 1987-09-22 1989-03-24 Takamisawa Cybernetics A/d converter circuit for measuring seismic vibration, crustal alteration or the like
JPS6480825A (en) * 1987-09-24 1989-03-27 Takamisawa Cybernetics Seismograph

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6479686A (en) * 1987-09-22 1989-03-24 Takamisawa Cybernetics A/d converter circuit for measuring seismic vibration, crustal alteration or the like
JPS6480825A (en) * 1987-09-24 1989-03-27 Takamisawa Cybernetics Seismograph

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