JPS6147527U - Impedance conversion circuit - Google Patents
Impedance conversion circuitInfo
- Publication number
- JPS6147527U JPS6147527U JP13316484U JP13316484U JPS6147527U JP S6147527 U JPS6147527 U JP S6147527U JP 13316484 U JP13316484 U JP 13316484U JP 13316484 U JP13316484 U JP 13316484U JP S6147527 U JPS6147527 U JP S6147527U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- operational amplifier
- circuit
- common
- input terminal
- 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
- Networks Using Active Elements (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図は本考案の実施例のインピーダンス変換回路の回
路構成図、第２図は従来のインピータンス変換回路の一
例の回路構成図、第３図は従来の他の例のインピーダン
ス変換回路の回路構成図、第４図は本考案のインピーダ
ンス変換回路を使用した差動増幅器の回路構成図である
。
Ｑ１・・・・・・オペアンプ、Ｄ１，Ｄ２．・・・・・
・ツェナーダイオード、■１，Ｉ２・・・・・・定電流
源、２・・・・・・インピーダンス変換回路、３・・・
・・・中間接続点。Fig. 1 is a circuit diagram of an impedance conversion circuit according to an embodiment of the present invention, Fig. 2 is a circuit diagram of an example of a conventional impedance conversion circuit, and Fig. 3 is a circuit diagram of another conventional impedance conversion circuit. FIG. 4 is a circuit diagram of a differential amplifier using the impedance conversion circuit of the present invention. Q1... operational amplifier, D1, D2.・・・・・・
・Zener diode, ■1, I2... Constant current source, 2... Impedance conversion circuit, 3...
...Intermediate connection point.
Claims (1)
つ入力端子の一方が回路のコモンとなるインピーダンス
変換回路において、演算増幅器のー側入力端子を前記入
力端子他方の端子に接続し、前記演算増幅器の士側入力
端子を直列接続した２個のツエナーダイオードの中間接
続点に接続すると共に前記演算増幅器の出力端子を回路
のコモンに接続し、前記２個の直列接続したツエナーダ
イオードの両側にそれぞれ前記２個の両側にそれぞれ前
記演算増幅器の十電源端子と定電流源及び一電源端子と
前記と別の定電流源を接続してこの２個の定電流源と回
路のコモンとの間にそれぞれ正及び負の電源を接続し、
前記ツエナーダイオードの中間接続点と回路のコモンと
を出力端子に接続してなるインピーダンス変換回路。In an impedance conversion circuit having high input impedance and low output impedance, and in which one of the input terminals is a common of the circuit, the - side input terminal of the operational amplifier is connected to the other terminal of the input terminal, and the negative side input terminal of the operational amplifier is connected to the other terminal of the input terminal. The input terminal is connected to the intermediate connection point of the two Zener diodes connected in series, and the output terminal of the operational amplifier is connected to the common of the circuit. The ten power supply terminals of the operational amplifier are connected to a constant current source, and the one power supply terminal and another constant current source are connected to each side of the operational amplifier, and positive and negative voltages are connected between these two constant current sources and the common of the circuit, respectively. Connect the power and
An impedance conversion circuit formed by connecting an intermediate connection point of the Zener diode and a common of the circuit to an output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13316484U JPS6147527U (en) | 1984-08-31 | 1984-08-31 | Impedance conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13316484U JPS6147527U (en) | 1984-08-31 | 1984-08-31 | Impedance conversion circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6147527U true JPS6147527U (en) | 1986-03-29 |
| JPH026672Y2 JPH026672Y2 (en) | 1990-02-19 |
Family
ID=30691716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13316484U Granted JPS6147527U (en) | 1984-08-31 | 1984-08-31 | Impedance conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6147527U (en) |
-
1984
- 1984-08-31 JP JP13316484U patent/JPS6147527U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH026672Y2 (en) | 1990-02-19 |
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