A CMOS microcoil-associated preamplifier for NMR spectroscopy.

T. Cherifi,N. Abouchi,Guo-Neng Lu,L. Bouchet-Fakri,L. Quiquerez,B. Sorli,J.-F. Chateaux,M. Pitaval, P. Morin

IEEE Transactions on Circuits and Systems I: Regular Papers（2005）

Cited 40|Views7

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Abstract

For improving sensitivity of nuclear magnetic resonance (NMR) measurements, an in-field preamplifier in a low-cost CMOS process is presented. It is based on a second-generation positive current conveyor (CCII+), with an impedance-matching output stage. The circuit has been designed with optimization of key performances, such as bandwidth, noise, and offset voltage. There have also been precautions...

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Key words

Preamplifiers,Nuclear magnetic resonance,Spectroscopy,Circuit testing,Magnetic field measurement,Bandwidth,Voltage,Magnetic circuits,Nuclear measurements,CMOS process

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