Multi-slope analog-to-digital converter

Details Multi-slope analog-to-digital converter Multi-slope analog-to-digital converter

1982-11-09

1986-03-04

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

324 99D, 340347AD, 340347CC, 340347M, H03K 1302, H03K 1320

Patent

active

045742715

ABSTRACT:
A multi-slope analog-to-digital converter avoids the dielectric absorption problem by providing a predetermined number of risings and fallings of the output of an integrator integrating an input analog signal during a first predetermined period of time, each falling corresponding to the simultaneous integration of a first reference signal during the first integration period. Subsequently the first reference signal is integrated for a time period to assure that the output signal of the integrator has a predetermined polarity, prior to completing the measurement of the input analog signal during further integration periods. Variations in the number of switching delays, and variations depending upon the direction with which the output of the integrator approaches a reference level, may thus be avoided.

REFERENCES:
patent: 3577140 (1971-05-01), Aasnaes
patent: 4354176 (1982-10-01), Aihara
patent: 4357600 (1982-11-01), Ressmeyer et al.

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