BiCMOS output driver

Details BiCMOS output driver BiCMOS output driver

1991-05-16

1992-03-31

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307300, H03K 1902, H03K 333

Patent

active

051011204

ABSTRACT:
A BiCMOS output driver in which a bipolar device is driven by a control signal that biases the collector of an NFET. The control signal enables the bipolar to pull an output node to full potential (ground) quickly. The signal then falls within one nanosecond after the output reaches ground, pulling the bipolar out of saturation. A separate feedback device coupled between the base of the bipolar and ground can be added to pull the bipolar out of saturation before the control signal falls.

REFERENCES:
patent: 4808850 (1989-02-01), Masuda et al.
patent: 4849658 (1989-07-01), Iwamura et al.
patent: 4890018 (1989-12-01), Fukushi et al.
patent: 4902914 (1990-02-01), Masuoka

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