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Low-voltage CMOS programmable gain amplifier for UHF applications

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4 Author(s)
B. Calvo ; Univ. of Zaragoza, Zaragoza ; S. Celma ; F. Aznar ; J. P. Alegre

A CMOS programmable gain amplifier suitable for low-voltage operation over the very high frequency range is presented. The scheme is based on a very simple common-mode feedforward pseudo-differential pair with resistive loads. Post-layout results for a 1.8 V-0.18 mum CMOS design show a linear-in-dB programmable gain from 0 to 12 dB with a -3 dB bandwidth above 1.4 GHz and power consumption below 17 mW over all the gain range.

Published in:

Electronics Letters  (Volume:43 ,  Issue: 20 )