Input current leakage correction for multi-channel LVDS...

Details Input current leakage correction for multi-channel LVDS... Input current leakage correction for multi-channel LVDS...

2007-04-24

2007-04-24

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Parallel controlled paths

C327S404000, C327S407000, C327S410000, C327S108000, C326S082000, C326S083000

Reexamination Certificate

active

10386146

ABSTRACT:
A high-speed front-multiplexed multi-channel LVDS-compatible repeater circuit that limits input leakage current levels in the event one or more input voltages of the circuit exceeds the supply voltage. The LVDS repeater includes a multiplexor having a plurality of differential inputs and at least one differential output. The multiplexor includes a plurality of transmission gates to allow any one of the differential inputs to be routed to any differential output. Each transmission gate includes a first PMOS transistor and an NMOS transistor. The multiplexor further includes first Schottky diodes coupled between Vcc and the back-gate nodes of the first PMOS transistors, and second PMOS transistors coupled as shunts between the gate nodes of the first PMOS transistors and the source nodes of the NMOS transistors. The first Schottky diodes block the back-gate diode-to-Vcc leakage current paths and the second PMOS transistors block the leakage current paths from the differential inputs to the first PMOS transistors when the input voltage exceeds Vcc.

REFERENCES:
patent: 5338987 (1994-08-01), Tomasetti et al.
patent: 5955912 (1999-09-01), Ko
patent: 5987543 (1999-11-01), Smith
patent: 6100719 (2000-08-01), Graves et al.
patent: 6369621 (2002-04-01), Tinsley et al.
1.5 Gdps LVDS 4×4 Crosspoint Switch; Texas Instruments, SN67LVDS125, SN65LVDT125, SLLS555A—Dec. 2002, Revised Feb. 2003.

Affiliated with

Also associated with

Rating

Input current leakage correction for multi-channel LVDS... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Input current leakage correction for multi-channel LVDS..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Input current leakage correction for multi-channel LVDS... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3745760