“…Commercial tabletop NMR instruments employ compact transmit-receive electronics (Blümich et al, 2014;Blümich, 2016;Blümich and Singh, 2018), which, although reliable, are nevertheless too large and power-hungry for mobile use. Their state of the art has been surpassed by the development of smaller, single-chip-based magnetic resonance transceivers (Zalesskiy et al, 2014;Ha et al, 2014Ha et al, , 2015Grisi et al, 2015;Chu et al, 2017;Anders et al, 2017). In particular, a small monolithic spectrometer has been developed (Bürkle et al, 2020), which uses a high-voltage CMOS processer with supply voltages up to 25 V for enhanced driving strength to combine the monolithic NMR-on-a-chip approach with macroscopic, centimeter-sized coils.…”