In this paper we describe a balun LNA with noise and distortion cancelling with active loads to boost the gain and reduce the noise figure (NF). Simulation and measurements results, with a 130 nm CMOS technology, show that the gain is enhanced by about 3 dB and the NF is reduced by at least 0.5 dB, with a negligible impact on the circuit linearity (IIP3 is about 0 dBm). The total power dissipation is only 4.8 mW, and the active area is less than 50 texttimes 50 textmum2.
- Active loads
- Gain optimization
Bastos, I., Oliveira, L. B., Goes, J., & Silva, M. (2014). A low power balun LNA with active loads for gain and noise figure optimization. Analog Integrated Circuits and Signal Processing, 81(3(SI)), 693-702. https://doi.org/10.1007/s10470-014-0426-6