Analog-to-digital converter using half range technique

Details Analog-to-digital converter using half range technique Analog-to-digital converter using half range technique

1980-05-09

1982-09-07

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347M, 340347CC, 340347SH, H03K 1308

Patent

active

043486584

ABSTRACT:
In a successive-approximation charge-redistribution analog-to-digital converter which includes a binary weighted capacitive ladder network, an unknown analog input voltage is sampled only on the largest capacitor representing half the capacitance. The conversion phase proceeds utilizing all the capacitance and only half the reference voltage. This not only reduces circuit complexity, but also reduces problems associated with disruption of the charge stored on the capacitor.

REFERENCES:
patent: 3056085 (1962-09-01), James et al.
patent: 3653030 (1972-03-01), Carbrey
patent: 4028694 (1977-06-01), Cook et al.
patent: 4129863 (1978-12-01), Gray et al.
patent: 4195282 (1980-03-01), Cameron
patent: 4200863 (1980-04-01), Hodges et al.
Timbie et al., PRINCIPLES OF ELECTRICAL ENGINEERING, John Wiley & Sons, Inc., 1922, pp. 309-311.

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