Differential comparator for amplifying small swing signals to a

Details Differential comparator for amplifying small swing signals to a Differential comparator for amplifying small swing signals to a

1999-04-13

2000-07-18

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 77, 327 89, 327374, H03K 1710, H03K 1704, H03F 345

Patent

active

RE0367818

ABSTRACT:
A differential comparator that amplifies small swing signals to full swing signals. The differential comparator comprises a current switch having a pair of inputs coupled to receive a pair of small swing complementary input signals and a pair of complementary outputs that output complementary signals. The complementary signals output by the current switch have a voltage swing that centers about a predetermined voltage in response to the complementary input signals. The differential comparator further comprises first and second inverters coupled to receive the output complementary signals, wherein each inverter has a trip point voltage [equal] corresponding to the predetermined voltage. The first and second inverters output full swing complementary output signals in response to the complementary signals output by the current switch.

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