JPS5650606A - Transistor differential amplifying circuit - Google Patents
Transistor differential amplifying circuitInfo
- Publication number
- JPS5650606A JPS5650606A JP12539079A JP12539079A JPS5650606A JP S5650606 A JPS5650606 A JP S5650606A JP 12539079 A JP12539079 A JP 12539079A JP 12539079 A JP12539079 A JP 12539079A JP S5650606 A JPS5650606 A JP S5650606A
- Authority
- JP
- Japan
- Prior art keywords
- give
- bias voltage
- transistor
- differential amplifying
- amplifying 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
Abstract
PURPOSE:To ensure a low distortion factor with no negative feedback, by providing a vertical differential transistor which obtains the mutual adverse phase outputs through the collectors to the transistor differential amplifying circuit which consists of the monolithic semiconductor integrated circuit and can turn the input bias voltage into OV. CONSTITUTION:The collector is earthed, and the Darlington-connected pnp transistors (TR)Q20 and Q21 give a level shift to the input signal VIN applied to the base and then give an earth to the collector. At the same time, the darlington- connected pnp TRsQ22 and Q23 give a level shift to the bias voltage of OV. As a result, the signal VIN and the bias voltage are applied to the emitters of the vertical npn TRsQ24 and Q26 which form a differential amplifying transistor. Then the load resistances R27 and R28 are provided at the collectors of the TRsQ24 and Q25 to obtain the outputs of adverse phase to each other. In such way, a low distortion factor can be obtained with no negative feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12539079A JPS5650606A (en) | 1979-10-01 | 1979-10-01 | Transistor differential amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12539079A JPS5650606A (en) | 1979-10-01 | 1979-10-01 | Transistor differential amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5650606A true JPS5650606A (en) | 1981-05-07 |
Family
ID=14908945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12539079A Pending JPS5650606A (en) | 1979-10-01 | 1979-10-01 | Transistor differential amplifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5650606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017169156A (en) * | 2016-03-18 | 2017-09-21 | アンリツ株式会社 | Transimpedance amplifier and optical signal receiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5216950A (en) * | 1975-07-30 | 1977-02-08 | Hitachi Ltd | Differential amplification circuit |
-
1979
- 1979-10-01 JP JP12539079A patent/JPS5650606A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5216950A (en) * | 1975-07-30 | 1977-02-08 | Hitachi Ltd | Differential amplification circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017169156A (en) * | 2016-03-18 | 2017-09-21 | アンリツ株式会社 | Transimpedance amplifier and optical signal receiver |
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