JPS5773524A - Single reference potential type digital-to-analog converter - Google Patents
Single reference potential type digital-to-analog converterInfo
- Publication number
- JPS5773524A JPS5773524A JP14899480A JP14899480A JPS5773524A JP S5773524 A JPS5773524 A JP S5773524A JP 14899480 A JP14899480 A JP 14899480A JP 14899480 A JP14899480 A JP 14899480A JP S5773524 A JPS5773524 A JP S5773524A
- Authority
- JP
- Japan
- Prior art keywords
- input signal
- capacitor
- grounded
- reference potential
- analog converter
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To achieve a DA converter which can simplify a register and a decoder circuit, by performing the switching of a connection switch for a capacitor of a capacitor array with a connecting procedure which is equal independently of the polarity of an input signal. CONSTITUTION:When an input signal is positive, after all the capacitor CA of a capacitor array is grounded for discharge, a part of the total capacitor CX according to a rate corresponding to the input signal is connected to the reference potential VR and the remaining CY is to ground, to obtain an output voltage V=CX, VR/(CX+ CY). When an input signal is negative, as shown in Figs. (e) and (f), the common electrode in series connection of the CX, CY corresponding to the input signal is grounded and after it is charged with the reference voltage VR, a switch SWG is disconnected, all the capacitors CA is grounded to obtain the output voltage V= -CX.VR/(CX+CY). Thus, independently of the polarity of the input signal, the reference voltage of the capacitor and the combination connected to ground can be made equal, allowing to simplify the control circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14899480A JPS5773524A (en) | 1980-10-24 | 1980-10-24 | Single reference potential type digital-to-analog converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14899480A JPS5773524A (en) | 1980-10-24 | 1980-10-24 | Single reference potential type digital-to-analog converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5773524A true JPS5773524A (en) | 1982-05-08 |
Family
ID=15465320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14899480A Pending JPS5773524A (en) | 1980-10-24 | 1980-10-24 | Single reference potential type digital-to-analog converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5773524A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57123732A (en) * | 1981-01-26 | 1982-08-02 | Oki Electric Ind Co Ltd | Digital-to-analog converting circuit |
WO2006075769A1 (en) * | 2005-01-12 | 2006-07-20 | Sharp Kabushiki Kaisha | A digital to analogue converter |
JP2007327678A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Floor type air conditioner |
JP2008232585A (en) * | 2007-03-23 | 2008-10-02 | Matsushita Electric Ind Co Ltd | Floor-installed air conditioner |
US7796074B2 (en) | 2005-04-05 | 2010-09-14 | Sharp Kabushiki Kaisha | Digital/analogue converter, converter arrangement and display |
-
1980
- 1980-10-24 JP JP14899480A patent/JPS5773524A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57123732A (en) * | 1981-01-26 | 1982-08-02 | Oki Electric Ind Co Ltd | Digital-to-analog converting circuit |
WO2006075769A1 (en) * | 2005-01-12 | 2006-07-20 | Sharp Kabushiki Kaisha | A digital to analogue converter |
JP2008527763A (en) * | 2005-01-12 | 2008-07-24 | シャープ株式会社 | Digital / analog converter |
US7741985B2 (en) | 2005-01-12 | 2010-06-22 | Sharp Kabushiki Kaisha | Digital to analogue converter |
US7796074B2 (en) | 2005-04-05 | 2010-09-14 | Sharp Kabushiki Kaisha | Digital/analogue converter, converter arrangement and display |
JP2007327678A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Floor type air conditioner |
JP2008232585A (en) * | 2007-03-23 | 2008-10-02 | Matsushita Electric Ind Co Ltd | Floor-installed air conditioner |
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