JPH0157825U - - Google Patents
Info
- Publication number
- JPH0157825U JPH0157825U JP15267887U JP15267887U JPH0157825U JP H0157825 U JPH0157825 U JP H0157825U JP 15267887 U JP15267887 U JP 15267887U JP 15267887 U JP15267887 U JP 15267887U JP H0157825 U JPH0157825 U JP H0157825U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- circuit
- input
- voltage
- analog signal
- 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
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Analogue/Digital Conversion (AREA)
Description
第1図は本考案実施例の回路構成を示す図、第
2図は従来例の回路構成を示す図、第3図はDA
変換器の回路構成を示す図である。
1……DA変換器、2……レジスタ、3……制
御回路、4……比較器、5……抵抗、6……サー
ミスタ、9……スイツチング回路。
Fig. 1 is a diagram showing the circuit configuration of the embodiment of the present invention, Fig. 2 is a diagram showing the circuit configuration of the conventional example, and Fig. 3 is a diagram showing the circuit configuration of the DA
FIG. 3 is a diagram showing a circuit configuration of a converter. 1...DA converter, 2...Register, 3...Control circuit, 4...Comparator, 5...Resistor, 6...Thermistor, 9...Switching circuit.
Claims (1)
入力回路の入力アナログ電圧とを比較し、両者が
等しくなつたときのDA変換器の入力を入力アナ
ログ電圧のデイジタル変換値として出力するAD
変換器において、上記DA変換器とアナログ信号
入力回路へ電圧を共通的に供給する回路を開閉す
るスイツチング回路を備えたことを特徴とするA
D変換器。 An AD that compares the changing output voltage of a DA converter and the input analog voltage of an analog signal input circuit, and outputs the input of the DA converter when the two become equal as a digital conversion value of the input analog voltage.
A converter comprising a switching circuit that opens and closes a circuit that commonly supplies voltage to the DA converter and the analog signal input circuit.
D converter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15267887U JPH0157825U (en) | 1987-10-05 | 1987-10-05 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15267887U JPH0157825U (en) | 1987-10-05 | 1987-10-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0157825U true JPH0157825U (en) | 1989-04-11 |
Family
ID=31427823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15267887U Pending JPH0157825U (en) | 1987-10-05 | 1987-10-05 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0157825U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020106468A (en) * | 2018-12-28 | 2020-07-09 | ルネサスエレクトロニクス株式会社 | Semiconductor device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57174930A (en) * | 1981-04-21 | 1982-10-27 | Toshiba Corp | Electronic device |
-
1987
- 1987-10-05 JP JP15267887U patent/JPH0157825U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57174930A (en) * | 1981-04-21 | 1982-10-27 | Toshiba Corp | Electronic device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020106468A (en) * | 2018-12-28 | 2020-07-09 | ルネサスエレクトロニクス株式会社 | Semiconductor device |