A broadband single-chip transceiver for multi-nuclear NMR probes

Marco Grisi; Gabriele Gualco; Giovanni Boero

doi:10.1063/1.4916206

A broadband single-chip transceiver for multi-nuclear NMR probes

Rev Sci Instrum. 2015 Apr;86(4):044703. doi: 10.1063/1.4916206.

Authors

Marco Grisi¹, Gabriele Gualco¹, Giovanni Boero¹

Affiliation

¹ Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland.

PMID: 25933876
DOI: 10.1063/1.4916206

Abstract

In this article, we present an integrated broadband complementary metal-oxide semiconductor single-chip transceiver suitable for the realization of multi-nuclear pulsed nuclear magnetic resonance (NMR) probes. The realized single-chip transceiver can be interfaced with on-chip integrated microcoils or external LC resonators operating in the range from 1 MHz to 1 GHz. The dimension of the chip is about 1 mm(2). It consists of a radio-frequency (RF) power amplifier, a low-noise RF preamplifier, a frequency mixer, an audio-frequency amplifier, and fully integrated transmit-receive switches. As specific example, we show its use for multi-nuclear NMR spectroscopy. With an integrated coil of about 150 μm external diameter, a (1)H spin sensitivity of about 1.5 × 10(13) spins/Hz(1/2) is achieved at 7 T.