High speed comparator

Details High speed comparator High speed comparator

1994-09-01

1996-07-30

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 89, 327563, H03K 524

Patent

active

055415385

ABSTRACT:
A comparator 10 has a first stage differential amplifier 11 coupled to a second stage, single ended differential amplifier 12. The output of the second stage is coupled to a latch input stage 15 of a latch 16. A latch replica bias circuit 20 operates the second stage at a clamp voltage corresponding to the threshold voltage of latch 16. A clock signal clk switches the second stage 12 between gain and clamp modes.

REFERENCES:
patent: 4763026 (1988-08-01), Tsen et al.
patent: 4791324 (1988-12-01), Hodapp
patent: 4794342 (1988-12-01), Kimura
patent: 5347175 (1994-09-01), Lang et al.
patent: 5374859 (1994-12-01), Doyle et al.
patent: 5420587 (1995-05-01), Michel

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