JPH0425311U - - Google Patents
Info
- Publication number
- JPH0425311U JPH0425311U JP6695490U JP6695490U JPH0425311U JP H0425311 U JPH0425311 U JP H0425311U JP 6695490 U JP6695490 U JP 6695490U JP 6695490 U JP6695490 U JP 6695490U JP H0425311 U JPH0425311 U JP H0425311U
- Authority
- JP
- Japan
- Prior art keywords
- transistors
- differential amplifier
- collector side
- diode
- resistor connected
- 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
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案に係る差動増幅器の一実施例を
示す構成図、第２図はダイオード回路の詳細を示
す構成図、第３図および第４図は本考案の他の実
施例構成図、第５図は第４図の構成におけるゲイ
ン特性を示す図、第６図は従来の差動増幅器にお
けるゲイン特性を示す図、第７図は従来の差動増
幅器の一例を示す構成図である。
Ｑ１，Ｑ２……トランジスタ、Ｚ，ＺＥ……ダ
イオード回路、ＣＣ……定電流源。
Fig. 1 is a block diagram showing one embodiment of a differential amplifier according to the present invention, Fig. 2 is a block diagram showing details of a diode circuit, and Figs. 3 and 4 are block diagrams of other embodiments of the present invention. , FIG. 5 is a diagram showing the gain characteristics in the configuration of FIG. 4, FIG. 6 is a diagram showing the gain characteristics in a conventional differential amplifier, and FIG. 7 is a configuration diagram showing an example of a conventional differential amplifier. . Q1, Q2...transistor, Z, ZE...diode circuit, CC...constant current source.
Claims (1)
電流源に接続された２つのトランジスタを備え、
２つのトランジスタのベースに加えた入力信号の
電圧差に対応した電圧が２つのトランジスタのコ
レクタ間より得られるように構成した差動増幅器
において、 前記コレクタ側に接続する抵抗として、前記２
つのトランジスタと同じ特性を有するトランジス
タをダイオード接続し、これを１個または複数個
直列接続してなるダイオード回路を使用するよう
に構成し、温度変化の影響を受けないゲインが得
られるようにしたことを特徴とする差動増幅器。[Claims for Utility Model Registration] Comprising two transistors with a resistor connected to the collector side and a constant current source connected to the emitter side,
In a differential amplifier configured such that a voltage corresponding to a voltage difference between input signals applied to the bases of two transistors is obtained between the collectors of the two transistors, the resistor connected to the collector side is
A diode circuit is constructed in which transistors having the same characteristics as two transistors are diode-connected, and one or more transistors are connected in series to obtain a gain that is not affected by temperature changes. A differential amplifier featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6695490U JPH0425311U (en) | 1990-06-25 | 1990-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6695490U JPH0425311U (en) | 1990-06-25 | 1990-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425311U true JPH0425311U (en) | 1992-02-28 |
Family
ID=31600107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6695490U Pending JPH0425311U (en) | 1990-06-25 | 1990-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425311U (en) |
-
1990
- 1990-06-25 JP JP6695490U patent/JPH0425311U/ja active Pending
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