Mask programmable low power voltage/current-mode ADC

Details Mask programmable low power voltage/current-mode ADC Mask programmable low power voltage/current-mode ADC

1997-12-22

1999-12-28

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

A03M 140

Patent

active

060087498

ABSTRACT:
An integrated circuit for converting an analog input signal to a corresponding digital signal. The integrated circuit has selectable operational modes and comprises a digital-to analog converter (DAC) to produce a variable reference voltage, a sample and hold circuit for sampling and holding the analog input signal to produce a sampled and held analog input signal, a comparator for comparing the reference voltage with the sampled and held analog input signal to produce a difference signal, a converter to convert the difference signal into the digital signal and related to the difference signal, and a selector for the operational modes. The operational modes may be one of a single ended current mode, a single ended voltage mode, a differential current mode and a differential voltage mode.

REFERENCES:
patent: 4831381 (1989-05-01), Hester
patent: 5212486 (1993-05-01), Nagaraj
patent: 5367302 (1994-11-01), Kalthoff et al.
patent: 5489904 (1996-02-01), Hadidi
patent: 5619203 (1997-04-01), Gross, Jr. et al.
patent: 5661483 (1997-08-01), Negahban et al.
patent: 5831562 (1998-11-01), Van Auken et al.

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