A 1-V 1.2-mW CMOS medradio receiver for biomedical applications

An ultra‐low‐power low‐voltage 401–406 MHz Medical Device Radiocommunications Service (MedRadio) receiver for continuous wireless communication in biomedical applications is demonstrated using 0.18‐μm CMOS technology. Although using a low‐IF architecture, careful consideration is done for individual...

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Bibliographic Details
Published in:Microwave and optical technology letters 2012-12, Vol.54 (12), p.2821-2825
Main Authors: Cha, Hyouk-Kyu, Yan, Dan Lei, Raja, M.Kumarasamy, Je, Minkyu
Format: Article
Language:English
Subjects:
biomedical telemetry
CMOS wireless receiver
low voltage
MedRadio
ultra low power
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Summary:An ultra‐low‐power low‐voltage 401–406 MHz Medical Device Radiocommunications Service (MedRadio) receiver for continuous wireless communication in biomedical applications is demonstrated using 0.18‐μm CMOS technology. Although using a low‐IF architecture, careful consideration is done for individual block‐level circuit design to minimize the overall power consumption. The receiver chain consists of a complementary current‐reuse LNA, an in‐phase/quadrature folded mixer, an eighth‐order complex bandpass filter, a limiting amplifier chain with RSSI, and a frequency synthesizer with a quadrature VCO. The proposed receiver achieves a gain of over 80 dB, noise figure of 14 dB, image rejection of 32 dB, and phase noise of −106 dBc/Hz at 100 kHz offset while consuming less than 1.2 mW from a 1‐V supply voltage with 1.8 mm2 of core die area. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2821–2825, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27205
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27205