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@inproceedings{Leene:2019:10.1109/ISCAS.2019.8702705,
author = {Leene, LB and Constandinou, TG},
doi = {10.1109/ISCAS.2019.8702705},
publisher = {IEEE},
title = {A 3rd order time domain delta sigma modulator with extended-phase detection},
url = {http://dx.doi.org/10.1109/ISCAS.2019.8702705},
year = {2019}
}

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TY  - CPAPER
AB  - This paper presents a novel analogue to digital converter using an oscillator-based loop filter for high-dynamic range bio-sensing applications. This is the first third-order feedforward ΔΣ modulator that strictly uses time domain integration for quantisation noise shaping. Furthermore we propose a new asynchronous extended-phase detection technique that increases the resolution of the 4 bit phase quantiser by another 5 bits to significantly improve both dynamic range and reduce the noise-shaping requirements. Preliminary simulation results show that this type of loop-filter can virtually prevent integrator saturation and achieves a peak 88 dB SNDR for kHz signals. The proposed system has been implemented using a 180 nm CMOS technology occupying 0.102 mm 2 and consumes 13.7 μW of power to digitise the 15 kHz signal bandwidth using a 2 MHz sampling clock.
AU  - Leene,LB
AU  - Constandinou,TG
DO  - 10.1109/ISCAS.2019.8702705
PB  - IEEE
PY  - 2019///
SN  - 0271-4302
TI  - A 3rd order time domain delta sigma modulator with extended-phase detection
UR  - http://dx.doi.org/10.1109/ISCAS.2019.8702705
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000483076402172&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/74922
ER  -

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Professor Timothy Constandinou

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