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Theoretical and practical minimum of the power consumption of 3 ADCs in SC technique

 
: Bechen, B.; Boom, T. van den; Weiler, D.; Hosticka, B.J.

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Institute of Electrical and Electronics Engineers -IEEE-:
ECCTD 2007,18th European Conference on Circuit Theory and Design : August 26-30, Sevilla, Spain
New York, NY: IEEE, 2007
ISBN: 1-4244-1342-7
ISBN: 978-1-4244-1342-3
pp.444-447
European Conference on Circuit Theory and Design (ECCTD) <18, 2007, Sevilla>
English
Conference Paper
Fraunhofer IMS ()
minimum; power consumption; ADC; SC; switched capacitor; sigma-delta modulator; low-power; downscaling; figure of merit; FOM; technology independent; noise; SAR ADC; cyclic ADC; Leistungsverbrauch; zyklischer ADC; Skalierung

Abstract
In this paper the theoretical and practical minimum of the power consumption is investigated for 3 ADC architectures, which are predestined for low conversion speed and applications in low-power sensor readout circuits. The analysis is made for the switched capacitor versions of the SAR ADC, cyclic ADC and sigma-delta modulator. The theoretical limit of the power efficiency is investigated by a commonly used figure of merit (FOM). As a case study two low-power ADCs fabricated in different technologies a technology-independent FOM is introduced.

: http://publica.fraunhofer.de/documents/N-62467.html