JPS5976121U - differential amplifier circuit - Google Patents
differential amplifier circuitInfo
- Publication number
- JPS5976121U JPS5976121U JP4466883U JP4466883U JPS5976121U JP S5976121 U JPS5976121 U JP S5976121U JP 4466883 U JP4466883 U JP 4466883U JP 4466883 U JP4466883 U JP 4466883U JP S5976121 U JPS5976121 U JP S5976121U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base
- resistance value
- current source
- differential amplifier
- 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
- Amplifiers (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図は従来例を示す回路図、第２図および第３図はそ
れぞれ本考案の実施例を示す回路図である。
Ｑ□＋ Ｑｊ２＋ Ｑ３・・・・・・トランジスタ、Ｒ
１，Ｒ２，Ｒ３゜Ｒ４，Ｒ□１．Ｒ□２・・・・・・抵
抗、Ｄｌ、Ｄ２・・・・・・ダイオード、Ｃ１・・・・
・・フィルタ用コンデンサ、Ｔ□、 Ｔ２． Ｔ３°°
°°°。
端子。FIG. 1 is a circuit diagram showing a conventional example, and FIGS. 2 and 3 are circuit diagrams showing embodiments of the present invention. Q□+ Qj2+ Q3...Transistor, R
1, R2, R3゜R4, R□1. R□2...Resistance, Dl, D2...Diode, C1...
...Filter capacitor, T□, T2. T3°°
°°°. terminal.
Claims (1)
、該第１および第２のトランジスタのための電流源回路
の少くとも一部を構成し、かつ電流源回路の電流を決定
する電流源用抵抗と１．前記第１のトランジスタのベー
スへのバイアス電圧を発生する電圧発生回路とを有する
差動増幅回路において、前記電圧発生回路の出力端と前
記第１のトランジスタのベースとの間に二つの抵抗が直
列に接続され、該二つの抵抗のうち、前記第１のトラン
ジスタのベースから近い方にある抵抗は必要な入力イン
ピーダンスを奏するような抵抗値を有し、前記第１のト
ランジスタのベースから遠い方にある抵抗は前記電流源
用抵抗の抵抗値と比例関係にある抵抗値を有することを
特徴とする差動増幅回路。first and second transistors connected in a differential manner; a current source forming at least a part of a current source circuit for the first and second transistors and determining the current of the current source circuit; resistance and 1. and a voltage generation circuit that generates a bias voltage to the base of the first transistor, wherein two resistors are connected in series between the output terminal of the voltage generation circuit and the base of the first transistor. of the two resistors, the one closer to the base of the first transistor has a resistance value that provides the necessary input impedance, and the one farther from the base of the first transistor has a resistance value that provides the necessary input impedance. A differential amplifier circuit characterized in that a certain resistor has a resistance value that is proportional to the resistance value of the current source resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4466883U JPS5976121U (en) | 1983-03-26 | 1983-03-26 | differential amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4466883U JPS5976121U (en) | 1983-03-26 | 1983-03-26 | differential amplifier circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5976121U true JPS5976121U (en) | 1984-05-23 |
| JPS6347065Y2 JPS6347065Y2 (en) | 1988-12-06 |
Family
ID=30175194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4466883U Granted JPS5976121U (en) | 1983-03-26 | 1983-03-26 | differential amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5976121U (en) |
-
1983
- 1983-03-26 JP JP4466883U patent/JPS5976121U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6347065Y2 (en) | 1988-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5976121U (en) | differential amplifier circuit | |
| JPS60124045U (en) | Output transistor protection circuit | |
| JPS5826212U (en) | differential amplifier | |
| JPS59195818U (en) | temperature compensation circuit | |
| JPS6079823U (en) | differential amplifier circuit | |
| JPS59137616U (en) | intermediate frequency amplifier circuit | |
| JPS58141608U (en) | differential amplifier circuit | |
| JPS606327U (en) | amplifier feedback circuit | |
| JPS6010351U (en) | Absolute value coefficient circuit | |
| JPS5957015U (en) | negative feedback amplifier | |
| JPS5890730U (en) | notsuchi filter | |
| JPS58161314U (en) | differential amplifier circuit | |
| JPS6082817U (en) | Muting circuit | |
| JPS611930U (en) | ECL circuit | |
| JPS5925824U (en) | nonlinear amplifier circuit | |
| JPS59125112U (en) | amplifier | |
| JPS5899912U (en) | Amplifier negative feedback circuit | |
| JPS588208U (en) | constant current circuit | |
| JPS59157321U (en) | Shock noise prevention circuit | |
| JPS5988923U (en) | differential amplifier | |
| JPS6037916U (en) | Differential amplifier bias circuit | |
| JPS604016U (en) | limiter circuit | |
| JPS58132410U (en) | rear equalizer circuit | |
| JPS60189126U (en) | Control voltage formation circuit | |
| JPS58153460U (en) | Temperature compensation bias circuit for PIN diode |