A Clockless Temperature-Compensated Nanowatt Analog Front-End for Wake-Up Radios Based on a Band-Pass Envelope Detector
| Autor: | Francesco Renzini, Eleonora Franchi Scarselli, Giulio Ricotti, Luca Perilli, Alessia M. Elgani, Roberto Canegallo, Antonio Gnudi |
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| Přispěvatelé: | Elgani A.M., Renzini F., Perilli L., Franchi Scarselli E., Gnudi A., Canegallo R., Ricotti G. |
| Rok vydání: | 2020 |
| Předmět: |
Physics
ultra-low-power subthreshold operation business.industry Subthreshold conduction 020208 electrical & electronic engineering Detector Electrical engineering Topology (electrical circuits) Biasing 02 engineering and technology envelope detector Wake-up radio (WUR) Analog front-end Schmitt trigger OOK modulation 0202 electrical engineering electronic engineering information engineering Baseband Electrical and Electronic Engineering business Envelope detector |
| Zdroj: | IEEE Transactions on Circuits and Systems I: Regular Papers. 67:2612-2624 |
| ISSN: | 1558-0806 1549-8328 |
| DOI: | 10.1109/tcsi.2020.2987850 |
| Popis: | This paper presents an Analog Front-End for integrated Wake-Up Radios. The proposed Analog Front-End is composed of an envelope detector, a Schmitt trigger and a biasing block and has three distinctive features: i) clockless solution, which does not require an always-on oscillator; ii) an envelope detector with band-pass response which leads to smaller capacitance, thus easier integration, and low-frequency noise suppression; iii) temperature compensated biasing scheme. An active scheme for the detector is used based on MOSFETs operated in the subthreshold region with a self-biased topology. Advantages and drawbacks of the proposed architecture are analyzed. A prototype was fabricated in the STMicroelectronics 90-nm BCD technology. The overall power consumption, excluding the biasing block, is 36 nW at 1.2 V. A 10 -3 Bit Error Rate is measured with a 771-MHz, 2-kbit/s OOK modulated input signal with -46 dBm power at room temperature and at -20 °C, and with almost -43 dBm power at 60 °C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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