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1. (WO2008100494) DIFFERENTIAL RECEIVER WITH COMMON-GATE INPUT STAGE

Pub. No.:    WO/2008/100494    International Application No.:    PCT/US2008/001826
Publication Date: 21/Ago/2008 International Filing Date: 11/Fev/2008
IPC: H04L 25/02
H03F 3/45
Applicants: RAMBUS INC.
PALMER, Robert, E.
POULTON, John, W.
Inventors: PALMER, Robert, E.
POULTON, John, W.
Title: DIFFERENTIAL RECEIVER WITH COMMON-GATE INPUT STAGE
Abstract:
A low-voltage differential communication system includes a low- and programmable-swing voltage-mode transmitter that delivers a low- voltage differential signal to a receiver via differential channel. The receiver employs two input transistors, each in a common-gate configuration, to recover the low- voltage differential signal. A current source in the receiver biases the input transistors such that their source voltages are nominally biased at the common- mode voltage of the differential signal, and their gate-source voltages remain essentially constant with common-mode-voltage fluctuations.