Interpolation type flash analog-to-digital converter

Details Interpolation type flash analog-to-digital converter Interpolation type flash analog-to-digital converter

1993-06-28

1995-01-24

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341156, 327 74, H03M 136

Patent

active

053845692

ABSTRACT:
In an analog signal comparator circuit, first and second inversion output currents to the first and second reference values of input analog signals, a plurality of the first and second dividually inversion outputs divided the first and second non-inversion output currents, and the first and second dividually non inversion output currents are combined respectively and added, and the comparison output corresponding to the virtual reference value for dividing the first reference value, and the first reference value and the second reference value equally are outputted. Thus, the number of comparators can be decreased comparing with the necessary numbers of reference values, and by decreasing the number of elements the input capacities can be decreased and differential linearity errors can be reduced.

REFERENCES:
patent: 4057795 (1977-11-01), Timsit
patent: 4285104 (1980-04-01), Yamakoshi et al.
patent: 4686508 (1987-08-01), van de Grift et al.
patent: 5126742 (1992-06-01), Schmidt et al.
patent: 5204679 (1993-04-01), Jessner et al.

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