Print Email Facebook Twitter A 280 μW Dynamic Zoom ADC With 120 dB DR 118 dB SNDR in 1 kHz BW Title A 280 μW Dynamic Zoom ADC With 120 dB DR 118 dB SNDR in 1 kHz BW Author Karmakar, S. (TU Delft Electronic Instrumentation) Gonen, B. (TU Delft Electronic Instrumentation) Sebastiano, F. (TU Delft (OLD)Applied Quantum Architectures) van Veldhoven, Robert (NXP Semiconductors) Makinwa, K.A.A. (TU Delft Microelectronics) Department Microelectronics Date 2018 Abstract This paper presents a dynamic zoom analog-to-digital converter for use in low-bandwidth (<1 kHz) instrumentation applications. It employs a high-speed asynchronous successive approximation register (SAR) ADC that dynamically updates the references of a fully differential Δ Σ ADC. Compared to previous zoom ADCs, faster reference updates relax the loop filter requirements, thus allowing the adoption of energy-efficient amplifiers. Fabricated in a 0.16-μm CMOS process, the prototype occupies 0.26 mm² and achieves 119.1-dB peak signal-to-noise ratio (SNR), 118.1-dB peak signal-to-noise-and-distortion-ratio (SNDR), and 120.3-dB dynamic range (DR) in a 1-kHz bandwidth while consuming 280 μW. This results in a Schreier figure of merit (FoM) of 185.8 dB. Subject A/D conversionasynchronous successive approximation register analog-to-digital converterBandwidthbattery-powered applicationsClocksdelta-sigma ADCDistance measurementdynamic zoom ADCEnergy resolutioninverter-based operational transconductance amplifier (OTA)Linearitylow-power circuits.RegistersSignal resolution To reference this document use: http://resolver.tudelft.nl/uuid:8a65f26b-4b1f-4808-b679-2f9e97287b49 DOI https://doi.org/10.1109/JSSC.2018.2865466 Embargo date 2022-03-30 ISSN 0018-9200 Source IEEE Journal of Solid State Circuits, 1-11 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 journal article Rights © 2018 S. Karmakar, B. Gonen, F. Sebastiano, Robert van Veldhoven, K.A.A. Makinwa Files PDF A_280_mu_W_Dynamic_Zoom_A ... kHz_BW.pdf 4.21 MB Close viewer /islandora/object/uuid:8a65f26b-4b1f-4808-b679-2f9e97287b49/datastream/OBJ/view