A 0.4 V, 6.4 nW, −75 dBm Sensitivity Fully Differential Wake-Up Receiver for WSNs Applications

This paper presents a fully differential wake-up receiver (WuRX) with ultra-low power and high sensitivity. Implementing the fully differential framework achieves differential signal processing without an off-chip balun, which achieves noise suppression and sensitivity improvement. The low voltage b...

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Veröffentlicht in:	IEEE transactions on circuits and systems. I, Regular papers Jg. 69; H. 7; S. 2794 - 2804
Hauptverfasser:	Liao, Xufeng, Xie, Suzhen, Xu, Jiaxi, Liu, Lianxi
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	New York IEEE 01.07.2022 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:	Baseband Circuits Differential Differential amplifiers envelope detector LF noise Low voltage Noise reduction Noise sensitivity offset cancellation technology Power consumption Power demand Radio frequency Receivers Sensitivity Signal processing time-domain ultra-low-power wake-up receiver Voltage
ISSN:	1549-8328, 1558-0806
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Abstract	This paper presents a fully differential wake-up receiver (WuRX) with ultra-low power and high sensitivity. Implementing the fully differential framework achieves differential signal processing without an off-chip balun, which achieves noise suppression and sensitivity improvement. The low voltage baseband signal processing (LVBSP) is proposed to cut down the power consumption, which is achieved by the low-voltage fast-response differential amplifier (LFDA) and the time-domain signal processing circuit. Moreover, the periodic offset cancellation technique (POCT) in the baseband circuit is proposed to alleviate the offset and low-frequency noise impacts. This WuRX is implemented in the TSMC 65-nm CMOS process occupying an active area of 0.18 mm 2 . When operating at 434 MHz, the proposed WuRX has a −75-dBm sensitivity at 250 bps while consuming 6.4 nW from 0.4 V supply voltage.
AbstractList	This paper presents a fully differential wake-up receiver (WuRX) with ultra-low power and high sensitivity. Implementing the fully differential framework achieves differential signal processing without an off-chip balun, which achieves noise suppression and sensitivity improvement. The low voltage baseband signal processing (LVBSP) is proposed to cut down the power consumption, which is achieved by the low-voltage fast-response differential amplifier (LFDA) and the time-domain signal processing circuit. Moreover, the periodic offset cancellation technique (POCT) in the baseband circuit is proposed to alleviate the offset and low-frequency noise impacts. This WuRX is implemented in the TSMC 65-nm CMOS process occupying an active area of 0.18 mm2. When operating at 434 MHz, the proposed WuRX has a −75-dBm sensitivity at 250 bps while consuming 6.4 nW from 0.4 V supply voltage. This paper presents a fully differential wake-up receiver (WuRX) with ultra-low power and high sensitivity. Implementing the fully differential framework achieves differential signal processing without an off-chip balun, which achieves noise suppression and sensitivity improvement. The low voltage baseband signal processing (LVBSP) is proposed to cut down the power consumption, which is achieved by the low-voltage fast-response differential amplifier (LFDA) and the time-domain signal processing circuit. Moreover, the periodic offset cancellation technique (POCT) in the baseband circuit is proposed to alleviate the offset and low-frequency noise impacts. This WuRX is implemented in the TSMC 65-nm CMOS process occupying an active area of 0.18 mm 2 . When operating at 434 MHz, the proposed WuRX has a −75-dBm sensitivity at 250 bps while consuming 6.4 nW from 0.4 V supply voltage.
Author	Xie, Suzhen Xu, Jiaxi Liu, Lianxi Liao, Xufeng
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Cites_doi	10.1109/TCSI.2019.2927999 10.1109/CICC.2015.7338396 10.1109/JSSC.2018.2884919 10.1109/TMTT.2020.2987786 10.1109/TMTT.2020.3026353 10.1109/JSSC.2010.2102590 10.1109/TCSII.2020.2977145 10.1109/TCSI.2018.2789449 10.1109/RWS.2011.5725447 10.1088/1674-4926/32/3/035002 10.1109/JSSC.2019.2912710 10.1109/JSSC.2007.894323 10.23919/VLSIC.2017.8008552 10.1109/TCSI.2020.2971439 10.1109/JSSC.2005.858620 10.1109/JSSC.2018.2815658 10.1109/CICC.2007.4405789 10.1109/TCSII.2019.2940212 10.1109/JSSC.2016.2525822 10.23919/EuMIC.2017.8230664 10.1049/el.2010.2853 10.1587/elex.11.20141000 10.1109/CICC.2017.7993615 10.1109/TE.2004.832879 10.1109/ISSCC.2012.6177088 10.1109/TCSI.2017.2771940
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SubjectTerms	Baseband Circuits Differential Differential amplifiers envelope detector LF noise Low voltage Noise reduction Noise sensitivity offset cancellation technology Power consumption Power demand Radio frequency Receivers Sensitivity Signal processing time-domain ultra-low-power wake-up receiver Voltage
Title	A 0.4 V, 6.4 nW, −75 dBm Sensitivity Fully Differential Wake-Up Receiver for WSNs Applications
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