JPS5750107A - Semiconductor integrated circuit - Google Patents
Semiconductor integrated circuitInfo
- Publication number
- JPS5750107A JPS5750107A JP55125593A JP12559380A JPS5750107A JP S5750107 A JPS5750107 A JP S5750107A JP 55125593 A JP55125593 A JP 55125593A JP 12559380 A JP12559380 A JP 12559380A JP S5750107 A JPS5750107 A JP S5750107A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- potential
- circuit
- point
- constant current
- 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 make small the circuit, by constituting a semiconductor circuit of inverting amplification through three external lead terminals, through the supply of bias power to the preamplifying stage through a constant current circuit from an output terminal.
CONSTITUTION: A potential at an output terminal 16 is almost a half the power supply voltage at no signal, and when an input signal is given, the output terminal voltage changes according to the signal level. The terminal voltage is made stable with a constant current circuit 24, and a potential at point A is (constant current value × resistance value between point A and ground). Thus, since the potential at the point A can be made constant independently of the potential at the terminal 16, the bias for a preamplifier 4 can be applied stably. When a part inside dotted lines is integrated, the amplifying circuit can be constituted with three external leads as input terminal 11, terminal 16 and ground terminal 19. Thus, the device can be made small.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55125593A JPS5750107A (en) | 1980-09-09 | 1980-09-09 | Semiconductor integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55125593A JPS5750107A (en) | 1980-09-09 | 1980-09-09 | Semiconductor integrated circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5750107A true JPS5750107A (en) | 1982-03-24 |
Family
ID=14913987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55125593A Pending JPS5750107A (en) | 1980-09-09 | 1980-09-09 | Semiconductor integrated circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5750107A (en) |
-
1980
- 1980-09-09 JP JP55125593A patent/JPS5750107A/en active Pending
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