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A 1 V 1 mW digital-audio ΔΣ modulator with 88 dB dynamic range using local switch bootstrapping

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2 Author(s)
M. Dessouky ; Paris VI Univ., France ; A. Kaiser

A 1 V, 1 mW, 14 bit delta-sigma modulator in a standard CMOS 0.35-μm technology is presented. A modified symmetrical bootstrapped switch is used in order to allow rail-to-rail signal switching. A single-loop third-order topology with an oversampling ratio of 100 achieves a dynamic range of 88 dB, a peak SNR of 87 dB and a peak SNDR of 85 dB in a signal bandwidth of 25 kHz

Published in:

Custom Integrated Circuits Conference, 2000. CICC. Proceedings of the IEEE 2000

Date of Conference:

2000