JPH02839U - - Google Patents
Info
- Publication number
- JPH02839U JPH02839U JP7746888U JP7746888U JPH02839U JP H02839 U JPH02839 U JP H02839U JP 7746888 U JP7746888 U JP 7746888U JP 7746888 U JP7746888 U JP 7746888U JP H02839 U JPH02839 U JP H02839U
- Authority
- JP
- Japan
- Prior art keywords
- time
- input
- comparators
- potentials
- reference voltage
- 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 description 6
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Analogue/Digital Conversion (AREA)
Description
第１図は、この考案の一実施例を示すＡ／Ｄ変
換回路の回路図、第２図は、同Ａ／Ｄ変換回路の
スイツチ回路の具体例を示す回路図、第３図は、
この考案の他の実施例を示すＡ／Ｄ変換回路の回
路図、第４図は、同Ａ／Ｄ変換回路の比較器の回
路構成を示す回路図、第５図は、従来のＡ／Ｄ変
換回路を示す回路図である。
Ｒ１，Ｒ２，…，Ｒ３１：抵抗素子、Ｓ１，Ｓ
２，…，Ｓ１５：スイツチ、ＣＭ１，ＣＭ２，…
，ＣＭ１５，ＣＭＳ１，ＣＭＳ２，…，ＣＭＳ１
５：比較器、ＥＣ：エンコーダ。
FIG. 1 is a circuit diagram of an A/D conversion circuit showing an embodiment of this invention, FIG. 2 is a circuit diagram showing a specific example of a switch circuit of the A/D conversion circuit, and FIG.
A circuit diagram of an A/D conversion circuit showing another embodiment of this invention, FIG. 4 is a circuit diagram showing the circuit configuration of a comparator of the A/D conversion circuit, and FIG. FIG. 2 is a circuit diagram showing a conversion circuit. R 1 , R 2 ,..., R 31 : Resistance element, S 1 , S
2 ,..., S15 : Switch, CM1 , CM2 ,...
, CM 15 , CMS 1 , CMS 2 ,..., CMS 1
5 : Comparator, EC: Encoder.
Claims (1)
抵抗値の抵抗素子が直列接続されてなり、両端の
抵抗素子が前記基準電圧源に接続された抵抗直列
回路と、各々にアナログ入力信号が加えられる一
方、前記２ｎ＋１−１個のうちの１個おきの、各
対応する抵抗素子の高電位側端と低電位側端の電
位がそれぞれ時分割で入力され、前記アナログ入
力信号と時分割入力される電位とをそれぞれ比較
する少なくとも２ｎ−１個の比較器と、これら２
ｎ−１個の比較器の出力を受け、ｎビツトのデジ
タル信号を出力するエンコーダとからなるＡ／Ｄ
変換回路。 A resistor series circuit comprising a reference voltage source and at least 2 n+1 -1 resistive elements having the same resistance value connected in series, the resistive elements at both ends being connected to the reference voltage source, and an analog input signal applied to each resistor series circuit. On the other hand, the potentials of the high-potential end and low-potential end of every other corresponding resistance element among the 2n +1 -1 resistors are input in a time-division manner, and the analog input signal and the time-division input are input in a time-division manner. at least 2 n −1 comparators each comparing the potentials of the two
An A/D consisting of an encoder that receives the output of n -1 comparators and outputs an n-bit digital signal.
conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7746888U JPH02839U (en) | 1988-06-10 | 1988-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7746888U JPH02839U (en) | 1988-06-10 | 1988-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02839U true JPH02839U (en) | 1990-01-05 |
Family
ID=31302452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7746888U Pending JPH02839U (en) | 1988-06-10 | 1988-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02839U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61293023A (en) * | 1985-06-20 | 1986-12-23 | Nec Corp | Digital to analog converter |
-
1988
- 1988-06-10 JP JP7746888U patent/JPH02839U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61293023A (en) * | 1985-06-20 | 1986-12-23 | Nec Corp | Digital to analog converter |
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