JPS5768930A - Digital-analog converter - Google Patents

Digital-analog converter

Info

Publication number
JPS5768930A
JPS5768930A JP14545280A JP14545280A JPS5768930A JP S5768930 A JPS5768930 A JP S5768930A JP 14545280 A JP14545280 A JP 14545280A JP 14545280 A JP14545280 A JP 14545280A JP S5768930 A JPS5768930 A JP S5768930A
Authority
JP
Japan
Prior art keywords
capacitor
switch
storage capacitor
chb
cha
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
JP14545280A
Other languages
Japanese (ja)
Inventor
Toshihiko Matsumura
Hirohisa Karibe
Hirokazu Fukui
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14545280A priority Critical patent/JPS5768930A/en
Publication of JPS5768930A publication Critical patent/JPS5768930A/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
    • H03M1/66—Digital/analogue converters
    • H03M1/74—Simultaneous conversion
    • H03M1/80—Simultaneous conversion using weighted impedances

Abstract

PURPOSE:To output analog voltage continuously, by providing a switch separating a capacitor array and an output terminal and an auxiliary potential storage capacitor, and connecting the potential storage capacitor to the output terminal. CONSTITUTION:While all the capacitances of capacitor arrays C1-Cn are discharged from a switch SW-G, it is separated and a potential storage capacitor CHA stores an output voltage Vout of an analog signal output terminal 4. The switch SW-G is disconnected, the capacitor array is set with an input signal 3 with the control of a register decoder 1, reference voltages +VR, -VR are divided and a sampling value according to the signal l3 is produced. The switch SW-S is closed, the sample value produced in the capacitor array is inputted to an output amplifier 2, and an SW-B switches the CHA into a potential storage capacitor CHB. Next, the SW-G is closed, the SW-S is opened, all the capacitors of the capacitor array is discharged again, and the CHB stores the Vout. An alalog voltage can be outputted continuously without outputting zero potential, by repeating the alternate use of the CHA and CHB.
JP14545280A 1980-10-17 1980-10-17 Digital-analog converter Pending JPS5768930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14545280A JPS5768930A (en) 1980-10-17 1980-10-17 Digital-analog converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14545280A JPS5768930A (en) 1980-10-17 1980-10-17 Digital-analog converter

Publications (1)

Publication Number Publication Date
JPS5768930A true JPS5768930A (en) 1982-04-27

Family

ID=15385546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14545280A Pending JPS5768930A (en) 1980-10-17 1980-10-17 Digital-analog converter

Country Status (1)

Country Link
JP (1) JPS5768930A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007074706A (en) * 2005-09-08 2007-03-22 Marvell World Trade Ltd Capacitive digital/analog and analog/digital converter
US7641558B2 (en) 2004-03-02 2010-01-05 Honda Motor Co., Ltd. Constant velocity joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7641558B2 (en) 2004-03-02 2010-01-05 Honda Motor Co., Ltd. Constant velocity joint
JP2007074706A (en) * 2005-09-08 2007-03-22 Marvell World Trade Ltd Capacitive digital/analog and analog/digital converter

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