JPS6460108A - Bidirectional cmos analog switch - Google Patents
Bidirectional cmos analog switchInfo
- Publication number
- JPS6460108A JPS6460108A JP62217216A JP21721687A JPS6460108A JP S6460108 A JPS6460108 A JP S6460108A JP 62217216 A JP62217216 A JP 62217216A JP 21721687 A JP21721687 A JP 21721687A JP S6460108 A JPS6460108 A JP S6460108A
- Authority
- JP
- Japan
- Prior art keywords
- analog switch
- cmos analog
- nmos7
- bidirectional
- bidirectional cmos
- 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
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To stabilize the conducting resistance of a bidirectional CMOS analog switch and to reduce a chip size by causing the conducting resistance of the NMOS of the bidirectional CMOS analog switch not to depend on an input level. CONSTITUTION:A circuit to utilize the back gate bias effect of an NMOS7 and to cause the substrate potential of the NMOS7 to follow the input level, namely, an input level detecting circuit 2 is provided. An input 19 is connected to a center 18 of the gate area of the NMOS7 of a bidirectional CMOS analog switch part 1 and an output 20 is connected to a substrate 4 of the NMOS7 of the bidirectional CMOS analog switch part 1 respectively. Thus, the bidirectional CMOS analog switch part 1 prevent a defect for the conducting resistance of the NMOS7 of the bidirectional CMOS analog switch part 1 to depend on the input level in a conducting condition. Thus, the conducting resistance of the conducting condition of the bidirectional CMOS analog switch part 1 can be stabilized and the chip size can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62217216A JPS6460108A (en) | 1987-08-31 | 1987-08-31 | Bidirectional cmos analog switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62217216A JPS6460108A (en) | 1987-08-31 | 1987-08-31 | Bidirectional cmos analog switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6460108A true JPS6460108A (en) | 1989-03-07 |
Family
ID=16700679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62217216A Pending JPS6460108A (en) | 1987-08-31 | 1987-08-31 | Bidirectional cmos analog switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6460108A (en) |
-
1987
- 1987-08-31 JP JP62217216A patent/JPS6460108A/en active Pending
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