Differential output buffer with super size

Details Differential output buffer with super size Differential output buffer with super size

2007-03-20

2007-03-20

Le, Don (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S027000

Reexamination Certificate

active

11135732

ABSTRACT:
Various embodiments for differential output circuits with reduced transistor sizes and reduced DC currents provide efficient and flexible differential driver circuits. AC current boosting enables the switching transistors that drive the output nodes to be smaller in size. The AC current boost circuitry is shared by both switching current paths in the differential output circuit to reduce size and parasitic effects. Similarly, DC current circuitry is also shared by both switching current paths. The AC boost circuit and the DC bias circuit are made programmable to enable the output circuit to support multiple I/O standards with different specifications.

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