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JPS6446321A - Analog/digital converter - Google Patents

Analog/digital converter

Info

Publication number
JPS6446321A
JPS6446321A JP20326887A JP20326887A JPS6446321A JP S6446321 A JPS6446321 A JP S6446321A JP 20326887 A JP20326887 A JP 20326887A JP 20326887 A JP20326887 A JP 20326887A JP S6446321 A JPS6446321 A JP S6446321A
Authority
JP
Japan
Prior art keywords
bit
reference voltage
generation circuit
voltage generation
analog
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
JP20326887A
Other languages
Japanese (ja)
Inventor
Osamu Fujita
Tsuneo Tsukahara
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP20326887A priority Critical patent/JPS6446321A/en
Publication of JPS6446321A publication Critical patent/JPS6446321A/en
Pending legal-status Critical Current

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  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To prevent a malfunction from being generated, by comparing an analog signal input voltage directly with a reference voltage for bit from a reference voltage generation circuit for bit, and outputting a digital signal. CONSTITUTION:The reference voltage generation circuit Gn for n-th bit generates the reference voltage Vn for n-th bit expressed as Vn=Vi/2(where, Vi represents the maximum value of the analog signal input voltage). Meanwhile, the reference voltage generation circuit Gj for j-th bit generates the reference voltage Vj for j-th bit based on a voltage for (j+1)-th bit corresponding to the reference voltage for (j+1)-th bit obtained from the output terminal of the reference voltage generation circuit Gj for (j+1)-th bit and a (j+1)-th bit digital signal obtained from the output terminal of a comparator for (j+1)-th bit. In such a way, the malfunction can be prevented from occurring.
JP20326887A 1987-08-14 1987-08-14 Analog/digital converter Pending JPS6446321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20326887A JPS6446321A (en) 1987-08-14 1987-08-14 Analog/digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20326887A JPS6446321A (en) 1987-08-14 1987-08-14 Analog/digital converter

Publications (1)

Publication Number Publication Date
JPS6446321A true JPS6446321A (en) 1989-02-20

Family

ID=16471228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20326887A Pending JPS6446321A (en) 1987-08-14 1987-08-14 Analog/digital converter

Country Status (1)

Country Link
JP (1) JPS6446321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02288617A (en) * 1989-04-05 1990-11-28 Ifm Electron Gmbh Method and circuit device for converting analog measurement voltage into digital measurement signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02288617A (en) * 1989-04-05 1990-11-28 Ifm Electron Gmbh Method and circuit device for converting analog measurement voltage into digital measurement signal
US5066954A (en) * 1989-04-05 1991-11-19 I F M Electronic Gmbh Analog to digital converter with reference voltage control and analog style display

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