A/D conversion device having a programmable transfer characteris

Details A/D conversion device having a programmable transfer characteris A/D conversion device having a programmable transfer characteris

1997-10-23

1999-11-23

Tokar, Michael

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

341127, 341159, H03M 162

Patent

active

059908173

ABSTRACT:
The invention relates to an A/D conversion device intended to supply at the output a digital signal Vout[0:7] resulting from the conversion of an analog input voltage Vin and receiving a control signal CRS used for defining the transfer characteristic of the device by way of comparison with the output signal Vout[0:7]. According to the invention, such a device comprises a reference module (AO, CMP2) which allows adjustment of the digital value of the output signal Vout[0:7] at a predetermined value when the analog input voltage Vin is zero, and means (Mx, Vact) for substituting for said voltage Vin a reference voltage Vref having a predetermined value when the device is in its control mode.

REFERENCES:
patent: 4517550 (1985-05-01), Nakamura et al.
patent: 4831378 (1989-05-01), Baars et al.
patent: 4860010 (1989-08-01), Iwamatsu
patent: 5343200 (1994-08-01), Matsui
patent: 5365233 (1994-11-01), Schaub
patent: 5608399 (1997-03-01), Coleman, Jr.

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