Title :
A quadrature receiver for μNMR applications in 0.13μm CMOS
Author :
Anders, Jens ; SanGiorgio, Paul ; Boero, Giovanni
Author_Institution :
Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
In this paper, we present a quadrature receiver for nuclear magnetic resonance applications. The receiver consists of a detection coil, a tuning capacitor, a low-noise amplifier, and quadrature down-conversion mixer with the corresponding baseband amplification stages. The quadrature local oscillator signals are generated on-chip from an external reference. The on-chip gain is 75dB and the input referred voltage noise density is 0.4nV/√Hz. The chip is realized in a 0.13μm IBM CMOS technology, consumes 45mA from a 1.8V supply and occupies an area of 600μm by 600 μm.
Keywords :
CMOS integrated circuits; capacitors; coils; low noise amplifiers; nuclear magnetic resonance; receivers; μNMR applications; IBM CMOS technology; current 45 mA; detection coil; gain 75 dB; low-noise amplifier; nuclear magnetic resonance; quadrature down-conversion mixer; quadrature local oscillator signals; quadrature receiver; size 0.13 mum; size 600 mum; tuning capacitor; voltage 1.8 V; CMOS integrated circuits; Coils; Logic gates; Nuclear magnetic resonance; Receivers; Signal to noise ratio;
Conference_Titel :
ESSCIRC, 2010 Proceedings of the
Conference_Location :
Seville
Print_ISBN :
978-1-4244-6662-7
DOI :
10.1109/ESSCIRC.2010.5619726
