PECL/LVPECL input buffer that employs positive feedback to...

Details PECL/LVPECL input buffer that employs positive feedback to... PECL/LVPECL input buffer that employs positive feedback to...

2008-01-08

2009-12-15

Barnie, Rexford N (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

Reexamination Certificate

active

07633311

ABSTRACT:
A CMOS based input buffer suitable for use with PECL or LVPECL voltage levels is described. The input buffer utilizes a differential voltage comparator that employs positive feedback to provide input hysteresis, symmetric headroom and increased noise immunity. In addition, the input buffer can utilize a reference voltage that is substantially constant over process, voltage, and temperature.

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Analog Devices, Inc., “Single-Supply, High Speed PECL/LVPECL Comparators”, ADCMP551/ADCMP552/ADCMP553, 2004, pp. 1-16.

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