Continuous-time digital filtering analogue-to-digital converter

Despite their alias-free operation, continuous time ADCs can have their power consumption overwhelmed when presented out-of-band, high frequency, high amplitude signals. A new continuous time ADC architecture which, thanks to its embedded low-pass filter transfer function is proposed, enables a powe...

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Bibliographic Details
Published in:Electronics letters 2016-03, Vol.52 (6), p.432-433
Main Authors: Ratiu, A, Morche, D, Allard, B, Lin-Shi, X, Verdier, J
Format: Article
Language:English
Subjects:
analogue‐digital conversion
Circuits and systems
continuous time ADC architecture
continuous time filters
continuous‐time digital filtering analogue‐to‐digital converter
Digital
digital filters
Electric power
Electronics
embedded low‐pass filter transfer function
Engineering Sciences
Filtering
Filtration
High frequencies
high‐frequency high‐amplitude signal
Low pass filters
Power consumption
power‐efficient quantisation
standard filter‐first solution
transfer functions
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Description
Summary:Despite their alias-free operation, continuous time ADCs can have their power consumption overwhelmed when presented out-of-band, high frequency, high amplitude signals. A new continuous time ADC architecture which, thanks to its embedded low-pass filter transfer function is proposed, enables a power efficient quantisation in the presence of such signals. Moreover, the half-digital nature of this approach simplifies the implementation of the proposed system compared to a standard filter-first solution.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2015.3204