CMOS low-voltage PECL driver with initial current boost (US6424217)

wherein the first current sets a voltage-output-high VOH level of the output when passing through an external resistor that receives the first current from the output;

wherein the second current sets a voltage-output-low VOL level of the output when passing through the external resistor that receives the second current from the output,

whereby static VOH and VOL levels are set by the first and second current sources, but the boost current increases a slew rate of the output toward VOL.

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Description:

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Forward References:

Show 5 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (5) | Backward references (13) | Citation Link

Patent	Pub.Date	Inventor	Assignee	Title
US4709169	1987-11	Ashton et al.	International Business Machines Corporation	Logic level control for current switch emitter follower logic
US4999519	1991-03	Kitsukawa et al.	Hitachi VLSI Engineering Corporation	Semiconductor circuit with low power consumption having emitter-coupled logic or differential amplifier
US5023488	1991-06	Gunning	Xerox Corporation	Drivers and receivers for interfacing VLSI CMOS circuits to transmission lines
US5216297	1993-06	Proebsting	Intergraph Corporation	Low voltage swing output MOS circuit for driving an ECL circuit
US5495184	1996-02	Des Rosiers et al.	VLSI Technology, Inc.	High-speed low-power CMOS PECL I/O transmitter
US5541527	1996-07	Hae-Ting Ma	SGS-Thomson Microelectronics, Inc.	PECL buffer
US5548230	1996-08	Gerson et al.	PMC-Sierra, Inc.	High-speed CMOS pseudo-ECL output driver
US5684429	1997-11	Sanwo et al.	NCR Corporation	CMOS gigabit serial link differential transmitter and receiver
US5874837	1999-02	Monohar et al.	Pericom Semiconductor Corp.	CMOS PECL driver with programmable current for varying voltage swings and termination types
US5966032	1999-10	Ueda et al.	Northern Telecom Limited	BiCMOS transceiver (driver and receiver) for gigahertz operation
US6140872	2000-10	McEldowney	Burr-Brown Corporation	Offset-compensated amplifier input stage and method
US6157586	2000-12	Ooishi	Mitsubishi Denki Kabushiki Kaisha	Memory device having potential control for increasing the operating margin at the start of a sensing cycle
US6191643	2001-02	Nayebi et al.	Sony Corporation	Voltage boost circuitry for hard drive write preamplifiers

is a continuation in part of

>US2001000682459<

2001-09-05

(granted)

US6424217 issued 2002-07-23 CMOS low-voltage PECL driver with initial current boost

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