Title :
A noise cancelling 0.7–3.8 GHz resistive feedback receiver front-end in 65 nm CMOS
Author :
Nejdel, Anders ; Tormanen, Markus ; Sjöland, Henrik
Author_Institution :
Dept. of Electr. & Inf. Technol., Lund Univ., Lund, Sweden
Abstract :
This paper presents a noise cancelling 0.7-3.8 GHz receiver front-end implemented in 65 nm technology. The circuit has a main path consisting of a high input impedance gm-stage, current-mode passive mixers and baseband amplifiers, where the input match is provided by frequency translational negative feedback from baseband to RF input. An auxiliary path with tunable gain is introduced to cancel noise from the main path while maintaining linearity. The receiver front-end achieves a noise figure of 1.6-3.7 dB and an IIP2 and IIP3 of >75 dBm and >1 dBm, respectively. The current consumption of the circuit is 22.8-34.9 mA, from a 1.2 V supply.
Keywords :
CMOS integrated circuits; UHF integrated circuits; circuit feedback; field effect MMIC; interference suppression; radio receivers; CMOS technology; RF input; baseband amplifiers; current 22.8 mA to 34.9 mA; current-mode passive mixers; frequency 0.7 GHz to 3.8 GHz; frequency translational negative feedback; gain 1.6 dB to 3.7 dB; high input impedance gm-stage; noise cancelling resistive feedback receiver front-end; size 65 nm; tunable gain; voltage 1.2 V; Baseband; Impedance matching; Mixers; Noise cancellation; Radio frequency; Receivers; Analog integrated circuits; CMOS integrated circuits; Current mode circuits; Low-noise amplifiers; Mixers; Radiofrequency integrated circuits;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2014 IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
978-1-4799-3862-9
DOI :
10.1109/RFIC.2014.6851651
