CMOS current switching circuit

Details CMOS current switching circuit CMOS current switching circuit

1985-11-21

1988-01-26

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307270, 307584, 307585, H03K 19094, H03K 301, H03K 17687

Patent

active

047218665

ABSTRACT:
A CMOS current steering switch circuit includes a switch formed of a pair of transistors of one conductivity type having a source terminal connected to a node to which a constant current source is also connected. The drain terminals of the transistors comprise the switch circuit's output terminals. The transistor's gate terminals are controlled by a pair of buffers comprising transistors of the other conductivity type that receive differential input signals that control the switch circuit. The buffers limit the voltage swings of the control signals applied to the gate terminals so that the transistors comprising the switch are not both off at the same time.

REFERENCES:
patent: 4590456 (1986-05-01), Burton et al.

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