JPS6441315A - Switching device for high frequency field effect transistor - Google Patents
Switching device for high frequency field effect transistorInfo
- Publication number
- JPS6441315A JPS6441315A JP19760187A JP19760187A JPS6441315A JP S6441315 A JPS6441315 A JP S6441315A JP 19760187 A JP19760187 A JP 19760187A JP 19760187 A JP19760187 A JP 19760187A JP S6441315 A JPS6441315 A JP S6441315A
- Authority
- JP
- Japan
- Prior art keywords
- fet
- high frequency
- drain
- drain current
- input terminal
- 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
Abstract
PURPOSE:To reduce the variance of a drain current of a FET for amplifying a high frequency signal by providing a high frequency FET switching circuit and a drain current control circuit using another FET. CONSTITUTION:A FET 6 having the same characteristic as a high frequency signal amplifying FET 4 and a drain current (IDSB) switching FET 5 are provided in a drain current control circuit 2, the drain of the FET 5 is connected to a high level constant voltage (Vcc) input terminal 19 and the source is connected to the drain of the FET6 for drain current (IDS) control. On the other hand, the source of the FET6 is connected to a low level constant voltage (VEE) input terminal 20 via two resistors (Rs) 9, (Rz) 10 connected in series and the gate is connected to a connecting point 22 between the resistors (Rs) 9 and (Rz) 10 and the gate of the high frequency signal amplification FET 4. Then the switch control signal is inputted from a switch control signal input terminal 18 (CONT) and fed to the gates of the FETs 3, 5. Thus, the variance in the drain bias current is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19760187A JPS6441315A (en) | 1987-08-07 | 1987-08-07 | Switching device for high frequency field effect transistor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19760187A JPS6441315A (en) | 1987-08-07 | 1987-08-07 | Switching device for high frequency field effect transistor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441315A true JPS6441315A (en) | 1989-02-13 |
Family
ID=16377190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19760187A Pending JPS6441315A (en) | 1987-08-07 | 1987-08-07 | Switching device for high frequency field effect transistor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441315A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006324305A (en) * | 2005-05-17 | 2006-11-30 | Oki Electric Ind Co Ltd | Analog semiconductor integrated circuit and its adjustment method |
-
1987
- 1987-08-07 JP JP19760187A patent/JPS6441315A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006324305A (en) * | 2005-05-17 | 2006-11-30 | Oki Electric Ind Co Ltd | Analog semiconductor integrated circuit and its adjustment method |
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