JPS60114443U - Analog-digital converter - Google Patents

Analog-digital converter

Info

Publication number
JPS60114443U
JPS60114443U JP145984U JP145984U JPS60114443U JP S60114443 U JPS60114443 U JP S60114443U JP 145984 U JP145984 U JP 145984U JP 145984 U JP145984 U JP 145984U JP S60114443 U JPS60114443 U JP S60114443U
Authority
JP
Japan
Prior art keywords
analog
digital converter
output
digital
power supply
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
JP145984U
Other languages
Japanese (ja)
Inventor
井原 房雄
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP145984U priority Critical patent/JPS60114443U/en
Publication of JPS60114443U publication Critical patent/JPS60114443U/en
Pending legal-status Critical Current

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  • Analogue/Digital Conversion (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来のアナログ・ディジタル変換装置を示ザ回
路因、第2図は従来のアナログ・ディジタル変換装置が
異常の時の判定手段を示す図、第3図はこの考案の一実
施例を示すアナログ・ディジタル変換装置を示す図であ
る。 図において、11ヨアナログ・ディジタル変換装置、2
は制御回路、3はクロック発生器、4はカウンタ、5A
、5Bはディジタル・アナログ変換装置、6A、6Bは
コンパレータ、7は比較演算回路、8は切換回路、9は
差動増幅器、10は基    ゛単電源、11はフリッ
プ・フロップ、イは外部より入力されたアナログ入力、
口はアナログ・ディジタル変換装置の開始信号であるス
タート信号、ハはクロック発生器からの出力クロック信
号、二 、はカウンタの出力であるディジタル出力、ホ
は出力電圧、へは比較出力、トはディジタル数データ、
チは比較演算回路の出力である正常出力、りは差動電圧
、ヌは基準電圧、ルは保持信号、ヲはフリップ・フロ゛
ツブからの正常出力、ワは比較比   −力である。な
お、図中同一あるいは相占部分には同二符号を付して示
しである。
Fig. 1 shows a conventional analog-to-digital converter and its circuit causes, Fig. 2 shows a means for determining when the conventional analog-to-digital converter is abnormal, and Fig. 3 shows an embodiment of this invention. 1 is a diagram showing an analog-to-digital conversion device shown in FIG. In the figure, 11 yo analog-to-digital converter, 2
is a control circuit, 3 is a clock generator, 4 is a counter, 5A
, 5B is a digital-to-analog converter, 6A and 6B are comparators, 7 is a comparison circuit, 8 is a switching circuit, 9 is a differential amplifier, 10 is a single power supply, 11 is a flip-flop, and A is an external input. analog input,
口 is the start signal that is the start signal of the analog-to-digital converter, C is the output clock signal from the clock generator, 2 is the digital output that is the output of the counter, E is the output voltage, is the comparison output, G is the digital number data,
H is the normal output of the comparator circuit, R is the differential voltage, N is the reference voltage, L is the holding signal, W is the normal output from the flip-flop, and W is the comparison ratio. In addition, the same or mutually exclusive parts in the drawings are indicated by the same reference numerals.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 2つのアナログ入力を比較し、その差を出力する差動増
幅器と、一定電圧を発生する基準電源と、上記差動増幅
の出力電圧と基準電源の出力電圧とを比較するコンパレ
ータと、゛このコンパレータのディジタル出力を保持す
るフリ′ツブ・フロップとを備えたことを特徴とするア
ナログ・ディジタル変換装置。
A differential amplifier that compares two analog inputs and outputs the difference; a reference power supply that generates a constant voltage; a comparator that compares the output voltage of the differential amplifier with the output voltage of the reference power supply; What is claimed is: 1. An analog-to-digital converter comprising: a free-flop that holds a digital output;
JP145984U 1984-01-10 1984-01-10 Analog-digital converter Pending JPS60114443U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP145984U JPS60114443U (en) 1984-01-10 1984-01-10 Analog-digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP145984U JPS60114443U (en) 1984-01-10 1984-01-10 Analog-digital converter

Publications (1)

Publication Number Publication Date
JPS60114443U true JPS60114443U (en) 1985-08-02

Family

ID=30474227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP145984U Pending JPS60114443U (en) 1984-01-10 1984-01-10 Analog-digital converter

Country Status (1)

Country Link
JP (1) JPS60114443U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016220172A (en) * 2015-05-26 2016-12-22 日立オートモティブシステムズ株式会社 Adc self-test circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016220172A (en) * 2015-05-26 2016-12-22 日立オートモティブシステムズ株式会社 Adc self-test circuit

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