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A 72dB-DR ΔΣ CT modulator using digitally estimated auxiliary DAC linearization achieving 88fJ/conv in a 25MHz BW | IEEE Conference Publication | IEEE Xplore

A 72dB-DR ΔΣ CT modulator using digitally estimated auxiliary DAC linearization achieving 88fJ/conv in a 25MHz BW


Abstract:

The ongoing trend for wide-band, power-efficient continuous-time ΔΣ modulators has led to various implementations, which commonly share the usage of multi-bit quantizatio...Show More

Abstract:

The ongoing trend for wide-band, power-efficient continuous-time ΔΣ modulators has led to various implementations, which commonly share the usage of multi-bit quantization, low oversampling ratio and 3rd or 4th-order loop-filters [1,2]. In order to improve power efficiency, circuit and architectural innovations [1], as well as digital implementation [3] or digital correction of analog circuit parts have been used. To date, the best power vs. performance ratio for ΔΣ modulators with above 10MHz bandwidth is held by [1] with an FoM of 120fJ/conv.
Date of Conference: 19-23 February 2012
Date Added to IEEE Xplore: 03 April 2012
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Conference Location: San Francisco, CA, USA

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