Apparatus for method and a high precision analog-to-digital conv

Details Apparatus for method and a high precision analog-to-digital conv Apparatus for method and a high precision analog-to-digital conv

1986-02-03

1990-07-03

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341119, 341166, 320 1, H03M 150

Patent

active

049395190

ABSTRACT:
An analog-to-digital converter includes a constant current source that alternately charges and discharges the capacitor between predetermined levels. The difference between the rate of charging and the rate of discharging of the capacitor provide information permitting a digital representation of the input signal. The single current source operates without change during the charging and discharging of the capacitor and has temperature compensation that eliminates potential errors due to instabilities in the ambient temperature.

REFERENCES:
patent: 3918050 (1975-11-01), Dorsman
patent: 4075623 (1978-02-01), Futagawa et al.
patent: 4195235 (1980-03-01), Schoeff
patent: 4320390 (1982-03-01), Scott
patent: 4379260 (1983-04-01), Labus
patent: 4588984 (1986-05-01), Dorsman

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