Differential high speed driver for low voltage operation

Details Differential high speed driver for low voltage operation Differential high speed driver for low voltage operation

1997-03-31

1999-04-27

Hecker, Stuart N.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

327108, G05F 316

Patent

active

058982973

ABSTRACT:
A driver includes first and second input terminals for receiving first and second input voltages, respectively, of a differential input signal, first and second switches coupled to the first and second input terminals, respectively, third and fourth switches coupled to the first and second input terminals, respectively, first, second, third and fourth current references coupled to the first, second, third and fourth switches, respectively, first second, third and fourth current mirrors coupled to the first, second, third and fourth current references, respectively, a first output terminal coupled to the first and third current mirrors, and a second output terminal coupled to the second and fourth current mirrors. When the first input voltage is less than the second input voltage, a first output current generated by the first and fourth current mirrors flows in a first direction between the output terminals, and when the first input voltage is greater than the second input voltage, a second output current generated by the second and third current mirrors flows in a second direction between the output terminals.

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Kyongho Lee et al., "A CMOS Serial Link for 1 Gbaud Fully Duplexed Data Communication," 1994 Symposium on VLSI Circuits Digest of Technical Papers, pp. 125-126.
Niantsu Wang, "Digital MOS Integrated Circuits," Prentice Hall (1989), pp. 156-157.
U.S. Application Serial No. 08/653,788, filed May 28, 1996, entitled "Fully Complimentary Differential Output Driver For High Speed Digital Communications" by Robert J. Bosnyak et al. (Copy not enclosed).

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