JPH01147912A - Analog voltage generating circuit - Google Patents

Analog voltage generating circuit

Info

Publication number
JPH01147912A
JPH01147912A JP30717087A JP30717087A JPH01147912A JP H01147912 A JPH01147912 A JP H01147912A JP 30717087 A JP30717087 A JP 30717087A JP 30717087 A JP30717087 A JP 30717087A JP H01147912 A JPH01147912 A JP H01147912A
Authority
JP
Japan
Prior art keywords
switch
voltage
selected
2a
circuits
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
JP30717087A
Inventor
Yoshitaka Kitada
Tomoko Tsunami
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Priority to JP30717087A priority Critical patent/JPH01147912A/en
Publication of JPH01147912A publication Critical patent/JPH01147912A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To obtain plural kinds of voltages with simple circuit constitution by employing plural resistance ladder circuits and a switch circuit combining output voltages of the ladder circuits.
CONSTITUTION: The 1st and 2nd switch circuits 2A, 2B are interlocked with a selection signal S1. That is, with the switch 2A selecting an optional voltage, the switch 2B selects a voltage lower by one step to the voltage selected by the switch 2A, that is, a voltage lower by (1/3)VDD is selected. Then the voltage across the resistance ladder circuit 1C is divided equally into four and one of them is selected by the switch circuit 2C. That is, the output voltage V0 is set at an interval of (1/2)VDD.
COPYRIGHT: (C)1989,JPO&Japio
JP30717087A 1987-12-03 1987-12-03 Analog voltage generating circuit Pending JPH01147912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30717087A JPH01147912A (en) 1987-12-03 1987-12-03 Analog voltage generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30717087A JPH01147912A (en) 1987-12-03 1987-12-03 Analog voltage generating circuit

Publications (1)

Publication Number Publication Date
JPH01147912A true JPH01147912A (en) 1989-06-09

Family

ID=17965877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30717087A Pending JPH01147912A (en) 1987-12-03 1987-12-03 Analog voltage generating circuit

Country Status (1)

Country Link
JP (1) JPH01147912A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06132828A (en) * 1992-10-14 1994-05-13 Mitsubishi Electric Corp D/a converter
JP2007195018A (en) * 2006-01-20 2007-08-02 Oki Electric Ind Co Ltd Digital/analog converter
JP2009005051A (en) * 2007-06-21 2009-01-08 Sanyo Electric Co Ltd Da conversion circuit
US7919931B2 (en) 2005-04-26 2011-04-05 Epson Imaging Devices Corporation LED driving circuit, illuminating device, and electro-optical device
JP2016096497A (en) * 2014-11-17 2016-05-26 ラピスセミコンダクタ株式会社 Equalizer circuit and semiconductor integrated device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06132828A (en) * 1992-10-14 1994-05-13 Mitsubishi Electric Corp D/a converter
US7919931B2 (en) 2005-04-26 2011-04-05 Epson Imaging Devices Corporation LED driving circuit, illuminating device, and electro-optical device
JP2007195018A (en) * 2006-01-20 2007-08-02 Oki Electric Ind Co Ltd Digital/analog converter
KR101243169B1 (en) * 2006-01-20 2013-03-13 오끼 덴끼 고오교 가부시끼가이샤 Digital-analog converter
JP2009005051A (en) * 2007-06-21 2009-01-08 Sanyo Electric Co Ltd Da conversion circuit
JP2016096497A (en) * 2014-11-17 2016-05-26 ラピスセミコンダクタ株式会社 Equalizer circuit and semiconductor integrated device

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