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A Clockless Temperature-Compensated Nanowatt Analog Front-End for Wake-Up Radios Based on a Band-Pass Envelope Detector.
- Source :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers; Aug2020, Vol. 67 Issue 8, p2612-2624, 13p
- Publication Year :
- 2020
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- DETECTORS
RADIOS
ERROR rates
LOGIC circuits
Subjects
Details
- Language :
- English
- ISSN :
- 15498328
- Volume :
- 67
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers
- Publication Type :
- Periodical
- Accession number :
- 144890729
- Full Text :
- https://doi.org/10.1109/TCSI.2020.2987850