Claims
- 1. An analog switching circuit for a junction field effect transistor (JFET), comprising:
- an input voltage line,
- a current supply menas connected with said input voltage line to supply current to the JFET gate, and
- a circuit means enabling said current supply means to supply current to the JFET gate only in response to an actuating input signal and only for a transient period during which the JFET is switched from OFF to ON, said circuit means inhibiting the supply of current to the JFET gate at all other times, during both steady state operation and switching of the JFET from ON to OFF.
- 2. The JFET switching circuit of claim 1, said JFET comprising a metal-semiconductor field effect transistor (MESFET).
- 3. The JFET switching circuit of claim 1, said JFET being implemented with gallium arsenide (GaAs).
- 4. The JFET switching circuit of claim 1, further comprising a negative voltage line and a control section connected in circuit therewith for aplying a negative voltage signal to the JFET gate to hold the JFET OFF only in response to an input signal corresponding to an OFF state for the JFET.
Parent Case Info
This is a continuation of copending application Ser. No. 07/316,874 filed on Feb. 28, 1989.
US Referenced Citations (4)
Non-Patent Literature Citations (2)
Entry |
Precision Monolithics, Inc. 1988 Analog IC Data Book, pp. 13-8 through 13-14. |
GigaBit Logic, S0030, "Dual GaAs SPST Switch", Aug. 1988. |
Continuations (1)
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Number |
Date |
Country |
Parent |
316874 |
Feb 1989 |
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