JPS56116309A - Field effect transistor amplifier - Google Patents
Field effect transistor amplifierInfo
- Publication number
- JPS56116309A JPS56116309A JP1923880A JP1923880A JPS56116309A JP S56116309 A JPS56116309 A JP S56116309A JP 1923880 A JP1923880 A JP 1923880A JP 1923880 A JP1923880 A JP 1923880A JP S56116309 A JPS56116309 A JP S56116309A
- Authority
- JP
- Japan
- Prior art keywords
- mosfets
- amplifier
- fets
- field effect
- effect transistor
- 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
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To obtain an amplifier suitable for an audio amplifier of high speed, broad band, high S/N and low distortion factor without storage delay, by constituting the amplifier only with FETs being the majority carrier.
CONSTITUTION: Junction type J-FETs 23, 24 of low noise are used for an input signal differential amplifying element, and they are in cascode-connection with MOSFETs 25, 26 so that a voltage ≥ several 10s volts or so can only be applied to FETs 23, 24. The load impedance of the voltage amplifying stage 3 can be increased by using MOSFETs 28, 27 for a constant current circuit element and MOSFETs 21, 22, allowing to asure sufficient gain. MOSFETs 17, 18 can be in push-pull connection for a power amplifier stage 4. Thus, the audio amplifier of high speed, broad band, low distortion factor and high S/N, can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1923880A JPS56116309A (en) | 1980-02-20 | 1980-02-20 | Field effect transistor amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1923880A JPS56116309A (en) | 1980-02-20 | 1980-02-20 | Field effect transistor amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56116309A true JPS56116309A (en) | 1981-09-12 |
Family
ID=11993805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1923880A Pending JPS56116309A (en) | 1980-02-20 | 1980-02-20 | Field effect transistor amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56116309A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3631099A1 (en) * | 1985-09-18 | 1987-03-26 | Sgs Microelettronica Spa | CMOS OUTPUT STAGE WITH LARGE VOLTAGE STROKE AND STABILIZATION OF THE REST OF REST |
-
1980
- 1980-02-20 JP JP1923880A patent/JPS56116309A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3631099A1 (en) * | 1985-09-18 | 1987-03-26 | Sgs Microelettronica Spa | CMOS OUTPUT STAGE WITH LARGE VOLTAGE STROKE AND STABILIZATION OF THE REST OF REST |
US4730168A (en) * | 1985-09-18 | 1988-03-08 | Sgs Microelettronica Spa | CMOS output stage with large voltage swing and with stabilization of the quiescent current |
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