Searched for: author:"van Veldhoven, Robert"
(1 - 5 of 5)
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Karmakar, S. (author), Gonen, B. (author), Sebastiano, F. (author), van Veldhoven, Robert (author), Makinwa, K.A.A. (author)
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,...
journal article 2018
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Cai, Z. (author), van Veldhoven, Robert (author), Suy, Hilco (author), de Graaf, G. (author), Makinwa, K.A.A. (author), Pertijs, M.A.P. (author)
This paper presents a readout circuit for a carbon dioxide (COࠢ) sensor that measures the CO₂-dependent thermal time constant of a hot-wire transducer. The readout circuit periodically heats up the transducer and uses a phase-domain Δ Σ modulator to digitize the phase shift of the resulting...
journal article 2018
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Cai, Z. (author), Rueda Guerrero, Luis E. (author), Louwerse, Alexander Mattheus Robert (author), Suy, Hilco (author), van Veldhoven, Robert (author), Makinwa, K.A.A. (author), Pertijs, M.A.P. (author)
This paper reports a readout circuit capable of accurately measuring not only the resistance of a resistive transducer, but also the power dissipated in it, which is a critical parameter in thermal flow sensors or thermal-conductivity sensors. A front-end circuit, integrated in a standard CMOS technology, sets the voltage drop across the...
journal article 2017
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Gonen, B. (author), Sebastiano, F. (author), Quan, Rui (author), van Veldhoven, Robert (author), Makinwa, K.A.A. (author)
This paper presents the first dynamic zoom ADC. Intended for audio applications, it achieves 109-dB DR, 106-dB signal-to-noise ratio, and 103-dB SNDR in a 20-kHz bandwidth, while dissipating only 1.12 mW. This translates into the state-of-the-art energy efficiency as expressed by a Schreier FoM of 181.5 dB. It also achieves the state-of-the...
journal article 2017
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Cai, Z. (author), van Veldhoven, Robert (author), Falepin, A (author), Suy, Hilco (author), Sterckx, E (author), Bitterlich, C. (author), Makinwa, K.A.A. (author), Pertijs, M.A.P. (author)
This paper reports a readout circuit for a resistive CO2 sensor, which operates by measuring the CO2-dependent thermal conductivity of air. A suspended hot-wire transducer, which acts both as a resistive heater and temperature sensor, exhibits a CO2-dependent heat loss to the surrounding air, allowing CO2 concentration to be derived from its...
journal article 2016
Searched for: author:"van Veldhoven, Robert"
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