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Conference Paper

A Low-Noise CMOS Receiver Frontend for NMR-based Surgical Guidance

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Anders, J., Reymond, S., Boero, G., & Scheffler, K. (2009). A Low-Noise CMOS Receiver Frontend for NMR-based Surgical Guidance. In C. Lim, & J. Goh (Eds.), 13th International Conference on Biomedical Engineering: ICBME 2008 3–6 December 2008 Singapore (pp. 89-93). Berlin, Germany: Springer.

Cite as: https://hdl.handle.net/21.11116/0000-0003-36A0-B
In this paper a novel architecture for an integrated NMR receiver front-end for surgical guidance applications is described. While the chip consumes only 9 mA supply current from a 3.3 V power supply it has a measured input referred noise density of 0.7 nV/√Hz. The receiver consists of the reception coil, an on-chip tuning capacitor an LNA and a 50Ω output buffer. The system is designedfor operation in a B0-field of 1.5 T corresponding to a frequency of 63MHz. It is implemented in a 0.35 μm CMOS high voltage process and occupies a chip area of 500 μm x 760 μm.