A FIRST ORDER INCREMENTAL ANALOG TO DIGITAL CONVERTER BASED ON CONTINUOUS TIME CIRCUITS

Ricardo Doldan, Alberto Yufera, Adoracion Rueda

Abstract

In this paper, an incremental Analog-to-Digital Converter (ADC) designed as part of the signal-conditioning circuitry for tissue impedance measurement system is presented. Continuous-time design techniques has been used and a modified implementation of the conversion algorithm, with respect to its discrete-time counterpart, has been developed. To reduce the influence of the no-idealities, analog and digital corrections have been also implemented. A prototype in 0.8 µm CMOS technology has been fabricated and tested. Experimental results are reported.

Keywords

Analog to Digital Conversion

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PWC-2003-TC4-057.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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