JPS5583336A - Digital-to-analog converter - Google Patents
Digital-to-analog converterInfo
- Publication number
- JPS5583336A JPS5583336A JP16045678A JP16045678A JPS5583336A JP S5583336 A JPS5583336 A JP S5583336A JP 16045678 A JP16045678 A JP 16045678A JP 16045678 A JP16045678 A JP 16045678A JP S5583336 A JPS5583336 A JP S5583336A
- Authority
- JP
- Japan
- Prior art keywords
- value
- circuit
- switch
- supplied
- integrator
- 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.)
- Granted
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To obtain a high-precision conversion output at low cost by integrating a constant voltage applied across an analog integrator for the time equivalent to a digital value, and then by outputting the integral value after sampling and holding.
CONSTITUTION: Pulse counter 6 counts clock pulses inputted via correction circuit 8 and then supplies them to coincidence detection circuit 9. Circuit 9 is supplied with a digital value to be converted into an analog value from controller 10, FF11 is reset on detection of a coincidence between the value and a supplied count value, and switch 2b in an ON state is turned OFF by start signal St. Consequently, integrator 1 integrates an analog voltage corresponding to the digital value supplied to circuit 9. This integral voltage is supplied via switch 2c to sample holding circuit 13, which outputs its held value from terminal 14. Simultaneously, switch 2a turns ON to apply a positive-polarity voltage to integrator 1 and the integral voltage decreases toward zero, so that when it reaches a fixed value, switch 2a will be OFF.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53160456A JPS5829006B2 (en) | 1978-12-20 | 1978-12-20 | Digital ↓-analog converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53160456A JPS5829006B2 (en) | 1978-12-20 | 1978-12-20 | Digital ↓-analog converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5583336A true JPS5583336A (en) | 1980-06-23 |
JPS5829006B2 JPS5829006B2 (en) | 1983-06-20 |
Family
ID=15715319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53160456A Expired JPS5829006B2 (en) | 1978-12-20 | 1978-12-20 | Digital ↓-analog converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829006B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6045536U (en) * | 1983-09-07 | 1985-03-30 | 株式会社ケンウッド | DA converter |
US5172117A (en) * | 1989-06-19 | 1992-12-15 | Linear Instruments | Analog to digital conversion using an integrater and a sample and hold circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5377164A (en) * | 1976-12-20 | 1978-07-08 | Nippon Telegr & Teleph Corp <Ntt> | Counter type decoder |
-
1978
- 1978-12-20 JP JP53160456A patent/JPS5829006B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5377164A (en) * | 1976-12-20 | 1978-07-08 | Nippon Telegr & Teleph Corp <Ntt> | Counter type decoder |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6045536U (en) * | 1983-09-07 | 1985-03-30 | 株式会社ケンウッド | DA converter |
JPH0424659Y2 (en) * | 1983-09-07 | 1992-06-11 | ||
US5172117A (en) * | 1989-06-19 | 1992-12-15 | Linear Instruments | Analog to digital conversion using an integrater and a sample and hold circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS5829006B2 (en) | 1983-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5583336A (en) | Digital-to-analog converter | |
JPS5613598A (en) | Sample holding circuit | |
JPS57129528A (en) | Digital-to-analog converter | |
JPS57151888A (en) | Time measuring device | |
JPS54138362A (en) | Analog-digital conversion unit | |
EP0067109A3 (en) | Apparatus for signalling the end points of the ramp-down interval in a dual ramp analog to digital converter | |
JPS5563768A (en) | Threshold voltage measuring instrument | |
JPS5625825A (en) | Analog-digital conversion circuit | |
SU1285599A1 (en) | Voltage-to-time interval converter | |
SU970683A2 (en) | Device for pulse-time conversion of dc voltage into number | |
JPS55127728A (en) | Integrating analogue digital converter | |
JP2555711B2 (en) | Signal converter | |
SU1100725A1 (en) | Method of converting continuous signal in sampled signal | |
JPS56114200A (en) | Sample holding circuit | |
JPS6412723A (en) | A/d converter with clamping circuit | |
JPS58105382A (en) | Integration circuit | |
JPS54130867A (en) | Analog-to-digital converter | |
JPS53101966A (en) | Ad converter | |
JPS54106276A (en) | Low frequency metering circuit | |
JPS6444124A (en) | A/d and d/a converter | |
JPS649376A (en) | Timing calibration system | |
JPS6444530A (en) | Digital integrating device | |
JPS56101518A (en) | Data indicating method | |
JPS60210773A (en) | Integrating wattmeter | |
JPS5730417A (en) | Analog-to-digital converter |