High speed analog-to-digital converter

Details High speed analog-to-digital converter High speed analog-to-digital converter

1990-12-20

1991-09-17

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341159, 341162, H03M 136, H03M 138

Patent

active

050498827

ABSTRACT:
High speed conversion of an analog input signal to a digital output signal is performed by applying the analog input to an input of a unity gain amplifier. During a first pass, an output signal produced by the amplifier is applied to inputs of each of a plurality of comparators. A first group of successively larger reference voltages are applied to reference inputs of the comparators, respectively. A plurality of the comparators switch in response thereto to produce output signals indicative of a range within which the output of the amplifier lies. The outputs of the comparators are encoded to effectuate conversion thereof to an analog representation of the amplifier output. The analog representation is compared to the analog input signal and the difference therebetween is applied to the input of the amplifier. During another pass another group of reference voltages, each substantially lower than corresponding values thereof during the previous pass, are applied to the reference inputs of the comparators. Binary representations of the outputs of the comparators during each of the passes are combined into a binary word accurately representing the analog input signal.

REFERENCES:
patent: 3646586 (1972-02-01), Kurz
patent: 4214233 (1980-07-01), Shaw et al.
patent: 4649371 (1987-03-01), Kolluri
patent: 4684924 (1987-08-01), Wood
patent: 4745393 (1988-05-01), Tsukada et al.
patent: 4749984 (1988-06-01), Prost et al.
patent: 4763107 (1988-08-01), Koen et al.
patent: 4804863 (1989-02-01), Welland et al.
patent: 4849759 (1989-07-01), Hughes
patent: 4875048 (1989-10-01), Shimizu et al.
patent: 4903028 (1990-02-01), Fukushima
patent: 4965579 (1990-10-01), Liu et al.
patent: 4987417 (1991-01-01), Buckland

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