This paper presents a continuous-time 3rd order ΣΔ modulator implemented in 40-nm CMOS technology for closing the feedback loop of a digital class-D audio amplifier. The proposed ΣΔ A/D converter consumes 1.7 mW from a 1.1-V power supply, achieving 101-dB DR and 72-dB peak SNDR. The active-RC implementation allows the 1.1-V ΣΔ modulator inputs to be directly connected to the 5-V class-D amplifier power stage outputs and inherently guarantees 3rd order anti-aliasing filtering. © 2013 IEEE

Donida, A., Malcovati, P., Nagari, A., Cellier, R., Baschirotto, A. (2013). A 40-nm CMOS, 1.1-V, 101-dB DR, 1.7-mW continuous-time ΣΔ ADC for a digital closed-loop class-D amplifier. In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (pp.437-440). Institute of Electrical and Electronics Engineers Inc. [10.1109/ICECS.2013.6815448].

A 40-nm CMOS, 1.1-V, 101-dB DR, 1.7-mW continuous-time ΣΔ ADC for a digital closed-loop class-D amplifier

BASCHIROTTO, ANDREA
Ultimo
2013

Abstract

This paper presents a continuous-time 3rd order ΣΔ modulator implemented in 40-nm CMOS technology for closing the feedback loop of a digital class-D audio amplifier. The proposed ΣΔ A/D converter consumes 1.7 mW from a 1.1-V power supply, achieving 101-dB DR and 72-dB peak SNDR. The active-RC implementation allows the 1.1-V ΣΔ modulator inputs to be directly connected to the 5-V class-D amplifier power stage outputs and inherently guarantees 3rd order anti-aliasing filtering. © 2013 IEEE
paper
Electrical and Electronic Engineering
English
IEEE International Conference on Electronics, Circuits, and Systems december 8-11
2013
Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
978-1-4799-2452-3
2013
437
440
6815448
none
Donida, A., Malcovati, P., Nagari, A., Cellier, R., Baschirotto, A. (2013). A 40-nm CMOS, 1.1-V, 101-dB DR, 1.7-mW continuous-time ΣΔ ADC for a digital closed-loop class-D amplifier. In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (pp.437-440). Institute of Electrical and Electronics Engineers Inc. [10.1109/ICECS.2013.6815448].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/153341
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