Analog-to-digital converter for compensating for input bias curr

Details Analog-to-digital converter for compensating for input bias curr Analog-to-digital converter for compensating for input bias curr

1996-10-14

1998-02-24

Gaffin, Jeffrey A.

Coded data generation or conversion

Converter compensation

341158, 341159, 341120, H03M 110

Patent

active

057215480

ABSTRACT:
An analog-to-digital converter includes a reference voltage generator for dividing a voltage between first and second reference voltages by a plurality of resistors serially connected therebetween and providing a plurality of reference voltages at each connecting point of the resistors; a plurality of emitter-coupled comparators for respectively generating a comparative signal by comparing the reference voltages with an analog input signal; and a plurality of constant current sources for respectively supplying an input bias current to each reference voltage input terminal of the emitter-coupled comparators.

REFERENCES:
patent: 4578715 (1986-03-01), Yamaguchi
patent: 4990917 (1991-02-01), Kohdaka
patent: 5070332 (1991-12-01), Kaller et al.
patent: 5111205 (1992-05-01), Morlon
patent: 5194867 (1993-03-01), Fisher
patent: 5218362 (1993-06-01), Mayes et al.
patent: 5376937 (1994-12-01), Colleran et al.
patent: 5416484 (1995-05-01), Lofstrom
patent: 5489905 (1996-02-01), Gross
patent: 5534864 (1996-07-01), Ono

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