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0.3‐V bulk‐driven programmable gain amplifier in 0.18‐µm CMOS
Author(s) -
Kulej Tomasz,
Khateb Fabian
Publication year - 2017
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2269
Subject(s) - cmos , electrical engineering , programmable gain amplifier , capacitance , dynamic range , swing , amplifier , voltage , automatic gain control , fully differential amplifier , operational amplifier , electronic engineering , engineering , physics , electrode , mechanical engineering , quantum mechanics
Summary A new solution for an ultra low voltage bulk‐driven programmable gain amplifier (PGA) is described in the paper. While implemented in a standard n‐well 0.18‐µm complementary metal–oxide–semiconductor (CMOS) process, the circuit operates from 0.3 V supply, and its voltage gain can be regulated from 0 to 18 dB with 6‐dB steps. At minimum gain, the PGA offers nearly rail‐to‐rail input/output swing and the input referred thermal noise of 2.37 μV/Hz 1/2 , which results in a 63‐dB dynamic range (DR). Besides, the total power consumption is 96 nW, the signal bandwidth is 2.95 kHz at 5‐pF load capacitance and the third‐order input intercept point (IIP 3 ) is 1.62 V. The circuit performance was simulated with LTspice. Copyright © 2016 John Wiley & Sons, Ltd.