Title: PTC-Based Sigma-Delta ADCs For High-Speed, Low-Noise Imagers
Authors: Xhakoni, Adi ×
Le-Thai, Ha
Chapinal, Genis
Geurts, Tomas
Gielen, Georges #
Issue Date: Sep-2014
Publisher: IEEE Sensors Council
Series Title: IEEE Sensors Journal vol:14 issue:9 pages:2932-2933
Article number: 1530-437X
Abstract: This paper presents a novel column-parallel readout circuit for image sensors based on incremental-sigma-delta (ISD) ADCs. The excessive number of clock cycles needed per conversion is addressed. We apply the Photon Transfer Curve (PTC) based conversion to a second-order ISD ADC, achieving a 2.75x clock cycles reduction when compared to a standard secondorder ISD ADC while maintaining a similar noise performance. This results in the reduction of the pixel readout time and of the size of the digital filter.
ISSN: 1530-437X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
× corresponding author
# (joint) last author

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