Title :
A 6.4mW, 1–3.5GHz current-mode receiver front-end with noise cancellation
Author :
Rodriguez, S. ; Rusu, A.
Author_Institution :
ICT, R. Inst. of Technol. (KTH), Stockholm, Sweden
Abstract :
A wideband receiver front-end which uses current-mode and noise cancellation techniques is presented. It is shown that the output impedance of the employed transconductance LNA can be very detrimental for the noise performance. The impact of the output impedance is quantified and considered in the design of a test circuit. An ESD protected prototype is fabricated in 150nm CMOS. Measurement results show a gain of 37dB, NF of 4dB and IIP3>;-15dBm over a bandwidth of 1GHz-3.5GHz. The front-end consumes only 3.55mA from a 1.8V supply and its active area occupies 0.06mm2.
Keywords :
CMOS analogue integrated circuits; broadband networks; current-mode circuits; electrostatic discharge; integrated circuit testing; interference suppression; low noise amplifiers; radio receivers; CMOS; ESD protected prototype; current 3.55 mA; current-mode receiver front-end; frequency 1 GHz to 3.5 GHz; gain 37 dB; noise cancellation; noise performance; output impedance; power 6.4 mW; size 150 nm; test circuit; transconductance LNA; voltage 1.8 V; wideband receiver front-end; Loss measurement; Mixers; Noise; Noise measurement; Radio frequency; Resistors; Wideband;
Conference_Titel :
ESSCIRC (ESSCIRC), 2011 Proceedings of the
Conference_Location :
Helsinki
Print_ISBN :
978-1-4577-0703-2
Electronic_ISBN :
1930-8833
DOI :
10.1109/ESSCIRC.2011.6044950
