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A 2.3-dB NF CMOS low voltage LNA optimized for medical applications at 600MHz

Borrego R

International Journal of Microelectronics and Computer Science

2013

Vol. 4, nr 3

87--91

In this paper it is presented a balun LNA, with voltage gain control that combines a common-gate and common-source stage, in which transistors biased in triode region replace the resistive loads. This last approach in conjunction with a dynamic threshold reduction technique allows a low supply voltage operation. Furthermore, a signiﬁcant chip area reduction can be exploited by adopting an inductor-less configuration. Simulations results with a 130 nm CMOS technology show that the gain is up to 19.3 dB and the NF is below 2.3 dB. The total dissipation is 4 mW, leading to an FOM of 2.26 for 0.6 V supply.