Integrate and fire circuit as an ADC replacement

We evaluate the performance of an asynchronous analog-to-digital converter known as the Integrate and Fire (I&F) circuit. The reconstruction algorithm for the sampler is presented along with the analytical results for the signal-to-noise ratio (SNR) of the reconstructed signal. We present the po...

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Bibliographic Details
Published in2011 IEEE International Symposium of Circuits and Systems (ISCAS) pp. 2421 - 2424
Main Authors Rastogi, Manu, Alvarado, Alexander Singh, Harris, John G., Principe, Jose C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2011
Subjects
Circuits and systems
Delay
Equations
Mathematical model
Power demand
Quantization
Signal to noise ratio
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Summary:We evaluate the performance of an asynchronous analog-to-digital converter known as the Integrate and Fire (I&F) circuit. The reconstruction algorithm for the sampler is presented along with the analytical results for the signal-to-noise ratio (SNR) of the reconstructed signal. We present the power vs. SNR tradeoff, based on the measurements from the chip fabricated in AMI 0.6 μm technology. The figure-of-merit (FOM) of the I&F sampler is 0.6 pj/conversion, which is comparable to the reported FOM for other synchronous and asynchronous ADCs, even though the I&F is implemented in a much older technology as compared to the other ADCs.
ISBN:1424494737
9781424494736
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2011.5938092