A CMOS microcoil-associated preamplifier for NMR spectroscopy.
IEEE Transactions on Circuits and Systems I: Regular Papers(2005)
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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