JPS6344537U - - Google Patents
Info
- Publication number
- JPS6344537U JPS6344537U JP13752586U JP13752586U JPS6344537U JP S6344537 U JPS6344537 U JP S6344537U JP 13752586 U JP13752586 U JP 13752586U JP 13752586 U JP13752586 U JP 13752586U JP S6344537 U JPS6344537 U JP S6344537U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- output
- amplifier
- signal
- conversion circuit
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Analogue/Digital Conversion (AREA)
Description
第１図は本考案に係る高速ＡＤ変換回路の構成
例を示す図、第２図は本考案と従来例との動作を
比較したタイムチヤート、第３図〜第５図は従来
例を示した図である。
１……Ｔ・Ｈ増幅器、２……第１のＡＤ変換器
、５……ＤＡ変換器、８……第２のＡＤ変換器、
９……増幅器、Ｒ１，ＲＢ……抵抗、ＣＢ……補
正コンデンサ。
Fig. 1 is a diagram showing a configuration example of a high-speed AD conversion circuit according to the present invention, Fig. 2 is a time chart comparing the operation of the present invention and a conventional example, and Figs. 3 to 5 show a conventional example. It is a diagram. 1... T/H amplifier, 2... First AD converter, 5... DA converter, 8... Second AD converter,
9...Amplifier, R1 , RB...Resistor, CB...Correction capacitor.
Claims (1)
トラツク・ホールドするＴ・Ｈ増幅器と、このＴ
・Ｈ増幅器の出力をデジタル信号へ変換する第１
のＡＤ変換器と、この第１のＡＤ変換器の出力を
相補関係にある２つのアナログ電流に変換するＤ
Ａ変換器と、このＤＡ変換器の出力とＴ・Ｈ増幅
器の出力との差分を取出す手段と、この手段の出
力をデジタル信号に変換する第２のＡＤ変換器と
からなるＡＤ変換回路において、 前記ＤＡ変換器の２つのアナログ電流の和が一
定値となるような手段を設けたことを特徴とする
高速ＡＤ変換回路。[Claims for Utility Model Registration] A T/H amplifier to which an analog signal to be converted is added and tracks and holds this signal;
・The first step converts the output of the H amplifier into a digital signal.
and a D converter that converts the output of the first AD converter into two complementary analog currents.
In an AD conversion circuit comprising an A converter, a means for extracting the difference between the output of the DA converter and the output of the T/H amplifier, and a second AD converter for converting the output of this means into a digital signal, A high-speed AD conversion circuit characterized in that a means is provided for making the sum of two analog currents of the DA converter a constant value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986137525U JPH083072Y2 (en) | 1986-09-08 | 1986-09-08 | High-speed AD conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986137525U JPH083072Y2 (en) | 1986-09-08 | 1986-09-08 | High-speed AD conversion circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6344537U true JPS6344537U (en) | 1988-03-25 |
| JPH083072Y2 JPH083072Y2 (en) | 1996-01-29 |
Family
ID=31041662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986137525U Expired - Lifetime JPH083072Y2 (en) | 1986-09-08 | 1986-09-08 | High-speed AD conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083072Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59160320A (en) * | 1983-03-02 | 1984-09-11 | Hitachi Ltd | Comparator with current output |
| JPS6028320A (en) * | 1983-07-27 | 1985-02-13 | Hitachi Ltd | Comparator circuit |
-
1986
- 1986-09-08 JP JP1986137525U patent/JPH083072Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59160320A (en) * | 1983-03-02 | 1984-09-11 | Hitachi Ltd | Comparator with current output |
| JPS6028320A (en) * | 1983-07-27 | 1985-02-13 | Hitachi Ltd | Comparator circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083072Y2 (en) | 1996-01-29 |