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High gain/power quotient variable‐gain wideband low‐noise amplifier for capsule endoscopy application
Author(s) -
Iji Ayobami,
Zhu Xi,
Heimlich Michael
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27111
Subject(s) - wideband , noise figure , impedance matching , electronic engineering , electrical engineering , bandwidth (computing) , low noise amplifier , amplifier , engineering , cmos , electrical impedance , telecommunications
An implantable high gain/power quotient variable‐gain wideband low‐noise amplifier (LNA) suitable for capsule endoscopy application is implemented in a 0.25 μm silicon‐on‐insulator CMOS process. With a current‐reused topology and wideband matching network, the presented LNA exhibits peak gain of 13.8 dB, 2.3 dB noise figure, more than 1 GHz bandwidth and 5 dB gain tuning range with good input and output impedance matching. The LNA consumes only 1.8 mW DC power from a supply voltage of 1.5 V. An excellent average gain/power quotient of 6.8 dB/mW is achieved. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2563–2565, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27111