Title: A 900-m V low-power sigma-delta A/D converter with 77-dB dynamic range
Authors: Peluso, Vincenzo
Vancorenland, Peter
Marques, Augusto
Steyaert, Michel
Sansen, Willy #
Issue Date: Dec-1998
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: IEEE Journal on Solid-State Circuits vol:33 issue:12 pages:1887-1897
Abstract: The design of a low-voltage and low-power Delta Sigma analog-to-digital (A/D) converter is presented. A third-order single-loop Delta Sigma modulator topology is implemented with the differential modified switched op-amp technique. The modulator topology has been transformed as to accommodate half-delay integrators. Dedicated low-voltage circuit building blocks, such as a class AB operational transconductance amplifier, a common-mode feedback amplifier, and a comparator are treated, as well as low-voltage design techniques. The influence of very low supply voltage on power consumption is discussed. Measurement results of the 900-mV Delta Sigma A/D converter show a 77-dB dynamic range in a 16-kHz bandwidth and a 62-dB peak signal-to-noise ratio for a 40-mu W power consumption.
ISSN: 0018-9200
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
Electrical Engineering - miscellaneous
# (joint) last author

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