JPS5945800U - sample hold circuit - Google Patents
sample hold circuitInfo
- Publication number
- JPS5945800U JPS5945800U JP14112682U JP14112682U JPS5945800U JP S5945800 U JPS5945800 U JP S5945800U JP 14112682 U JP14112682 U JP 14112682U JP 14112682 U JP14112682 U JP 14112682U JP S5945800 U JPS5945800 U JP S5945800U
- Authority
- JP
- Japan
- Prior art keywords
- hold circuit
- sample
- hold
- sample hold
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims 2
- 238000005070 sampling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のサンプルホールド回路を示すブロック図
、第２図ａ、 ｂはサンプルホールド回路の動作を説明
するための波形図、第３図は本考案のサンプルホールド
回路のブロック図を示す。
符号の説明、１・・・ドライブアンプ、２・・・アナロ
グスイッチ、３・・・バッファアンプ、Ｃ・・・ホール
ドコンデンサ、Ｃ３・・・補助コンデンサ。FIG. 1 is a block diagram showing a conventional sample and hold circuit, FIGS. 2a and 2b are waveform diagrams for explaining the operation of the sample and hold circuit, and FIG. 3 is a block diagram of the sample and hold circuit of the present invention. Explanation of symbols: 1... Drive amplifier, 2... Analog switch, 3... Buffer amplifier, C... Hold capacitor, C3... Auxiliary capacitor.
Claims (1)
リング信号により開閉制御されるアナログスイッチを介
してホールドコンデンサを充放電制御するサンプルホー
ルド回路において一端が前記ドライブアンプと前記アナ
ログスイッチとの間に接続され、他端が接地された補助
コンデンサを設け、前記ホールドコンデンサの充放電時
に前記補助コンデンサが低インピーダンスの電源として
作用するようにしたことを特徴とするサンプルホールド
回路。In a sample and hold circuit that controls charging and discharging of a hold capacitor via an analog switch whose opening and closing are controlled by a sampling signal using an output voltage of a drive amplifier that amplifies an input signal, one end is connected between the drive amplifier and the analog switch, 1. A sample-and-hold circuit characterized in that an auxiliary capacitor is provided whose other end is grounded, and the auxiliary capacitor acts as a low-impedance power source when charging and discharging the hold capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14112682U JPS5945800U (en) | 1982-09-20 | 1982-09-20 | sample hold circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14112682U JPS5945800U (en) | 1982-09-20 | 1982-09-20 | sample hold circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5945800U true JPS5945800U (en) | 1984-03-27 |
| JPS6213280Y2 JPS6213280Y2 (en) | 1987-04-06 |
Family
ID=30315733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14112682U Granted JPS5945800U (en) | 1982-09-20 | 1982-09-20 | sample hold circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5945800U (en) |
-
1982
- 1982-09-20 JP JP14112682U patent/JPS5945800U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6213280Y2 (en) | 1987-04-06 |
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