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An integrated CMOS receiver chip for NMR-applications

, , and . 2009 IEEE Custom Integrated Circuits Conference, page 471-474. (September 2009)
DOI: 10.1109/CICC.2009.5280786

Abstract

We present the first CMOS-only receiver chip for NMR-applications at 300 MHz. The system consists of an on-chip reception coil, a tuning-capacitor, a downconversion-mixer and a low-frequency gain-stage as well as biasing and offset-compensation circuitry. It has an input referred voltage noise density of 0.7 nV/radicHz and a gain of 75 dB. The power consumption is 18 mA from a single 3.3 V supply. The chip is realized in 0.35 mum technology and occupies an area of 1200 times 850 mum2.

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