A/D conversion device

Details A/D conversion device A/D conversion device

1997-10-23

1999-11-09

Tokar, Michael

Coded data generation or conversion

Converter compensation

H03M 106

Patent

active

059823119

ABSTRACT:
A conversion device includes an A/D converter (8) and a control module for auto-adjustment of the DC component. This module includes an analog comparator (5) which performs a comparison between the analog signal (11) at the input of the A/D converter (8) and a reference voltage (10) produced on the basis of voltages which feed the resistance ladder (9) of the converter. In order that the control does not introduce noise into the signal supplied, the comparator (5) of the control module has a non-linear response with a reduced output/input gain for a range of the differential control signal centered around zero.

REFERENCES:
patent: 4380005 (1983-04-01), Debord et al.
patent: 5057920 (1991-10-01), Wilkinson
patent: 5319450 (1994-06-01), Tamayama et al.
patent: 5371552 (1994-12-01), Brummette et al.

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