A 0.2V, 7.5 uW, 20 kHz Sigma-Delta modulator with 69 dB SNR in 90 nm CMOS

Summary, in English

This paper presents a frequency-to-digital ΣΔ modulator designed in a digital 90 nm CMOS process, operating with a supply voltage of 0.2V. For a 7.5 μW power consumption, the SNR is 68.9 dB and the SNDR is 60.3 dB over a 20 Hz-20 kHz bandwidth. This work shows that the SNR/SNDR performance of this kind of ΣΔ converter can be adjusted over a wide range, while maintaining a state-of-the-art figure-of-merit of 82 fJ/conversion.

• Author: Ulrik Wismar; Dag Wisland; Pietro Andreani
• Publishing year: 2007
• Language: English
• Pages: 206-209
• Publication/Series: ESSCIRC, 33rd European Solid State Circuits Conference, 2007
• Links: http://ieeexplore.ieee.org/iel5/4430236/4430237/04430281.pdf; http://dx.doi.org/10.1109/ESSCIRC.2007.4430281
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Status: Published
• ISBN/ISSN/Other: ISSN: 1930-8833; ISBN: 978-1-4244-1125-2