Clocked precision integrating analog-to-digital converter system

Details Clocked precision integrating analog-to-digital converter system Clocked precision integrating analog-to-digital converter system

1983-12-12

1986-05-13

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

307257, 324 99D, 340347AD, 340347M, H03K 1320

Patent

active

045889848

ABSTRACT:
An analog-to-digital conversion system comprising: a precision floating current source for supplying a precision current to a current source terminal and for sinking an equivalent precision current at a current sink terminal, a summing terminal for receiving an analog signal current, enabling means for directing the flow of the precision current from the current source terminal to the summing terminal during a first mode of operation and for sinking the precision current from the summing terminal during a second mode of operation, an integrator for generating a voltage signal proportional to the integral of the sum of the precision and analog currents flowing through the summing terminal; and second means, coupled to the enabling means, being responsive to the voltage signal and to clock pulses for controlling the first and second modes of operation of the enabling means and for generating a digital representation of the amplitude of the analog current.

REFERENCES:
patent: 4112428 (1978-09-01), Dorsman

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