Print Email Facebook Twitter A 590 μw, 106.6 dB SNDR, 24 kHz BW Continuous-Time Zoom ADC with a Noise-Shaping 4-bit SAR ADC Title A 590 μw, 106.6 dB SNDR, 24 kHz BW Continuous-Time Zoom ADC with a Noise-Shaping 4-bit SAR ADC Author Mehrotra, Shubham (NXP Semiconductors; Student TU Delft) Eland, Efraim (Student TU Delft) Karmakar, S. (TU Delft Electronic Instrumentation) Liu, Angqi (Student TU Delft) Gonen, B. (TU Delft Electronic Instrumentation; Ethernovia) Bolatkale, M. (TU Delft Electronic Instrumentation; NXP Semiconductors) Van Veldhoven, Robert (NXP Semiconductors) Makinwa, K.A.A. (TU Delft Microelectronics) Department Microelectronics Date 2022 Abstract This paper presents a continuous-Time zoom ADC for audio applications. It combines a 4-bit noise-shaping coarse SAR ADC and a fine delta-sigma modulator with a tail-resistor linearized OTA for improved linearity, energy efficiency, and handling of out-of-band interferers compared to previous designs. In 160 nm CMOS, the prototype chip occupies 0.36 mm2, achieves 107.2 dB SNR, 106.6 dB SNDR, and 107.3 dB dynamic range in a 24 kHz bandwidth while consuming 590 μW from a 1.8 V supply. This translates into a Schreier figure-of-merit (FoMs) of 183.4 dB and a FoMSNDR of 182.7 dB. Subject A/D conversionaudio analog to digital converter (ADC)continuous-Time delta-sigma ADCdynamic zoom ADChigh linearity operational transconductance amplifier (OTA)low-power circuitsnoise-shaping SAR ADC To reference this document use: http://resolver.tudelft.nl/uuid:623e0fe9-d07c-471d-8093-7e1d38bf2daa DOI https://doi.org/10.1109/ESSCIRC55480.2022.9911295 Publisher Institute of Electrical and Electronics Engineers (IEEE) Embargo date 2023-04-24 ISBN 9781665484947 Source ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings Event 48th IEEE European Solid State Circuits Conference, ESSCIRC 2022, 2022-09-19 → 2022-09-22, Milan, Italy Series ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2022 Shubham Mehrotra, Efraim Eland, S. Karmakar, Angqi Liu, B. Gonen, M. Bolatkale, Robert Van Veldhoven, K.A.A. Makinwa Files PDF A_590_W_106.6_dB_SNDR_24_ ... AR_ADC.pdf 1.43 MB Close viewer /islandora/object/uuid:623e0fe9-d07c-471d-8093-7e1d38bf2daa/datastream/OBJ/view