IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524
Regular Section
A 90dB 1.32mW 1.2V 0.13mm2 Two-Stage Variable Gain Amplifier in 0.18μm CMOS
Quoc-Hoang DUONGJeong-Seon LEESang-Hyun MINJoong-Jin KIMSang-Gug LEE
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2008 年 E91.C 巻 5 号 p. 806-808


An all CMOS variable gain amplifier (VGA) which features wide dB-linear gain range per stage (45dB), low power consumption (1.32mW), small chip size (0.13mm2), and low supply voltage (1.2V) is described. The dB-linear range is extended by reducing the supply voltage of the conventional V-to-I converter. The two-stage VGA implemented in 0.18μm CMOS offers 90dB of gain variation, 3dB bandwidth of greater than 21MHz, and max/min input IP3 and P1 dB, respectively, of -5/-42 and -12/-50 dBm.

© 2008 The Institute of Electronics, Information and Communication Engineers
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