@inproceedings{discovery10195904,
          series = {IEEE International Symposium on Circuits and Systems (ISCAS)},
         journal = {Proceedings - IEEE International Symposium on Circuits and Systems},
            year = {2024},
           title = {A Differential SPDT T/R Switch for PMUT Biomedical Ultrasound Systems},
            note = {This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.},
       booktitle = {Proceedings of the 2024 IEEE International Symposium on Circuits and Systems (ISCAS)},
       publisher = {IEEE},
          volume = {2024},
           month = {July},
         address = {Singapore},
            issn = {2158-1525},
          author = {Zhang, Y and Jiang, D and Demosthenous, A},
        abstract = {This paper presents a differential T/R SPDT switch, designed in a 0.18 {\ensuremath{\mu}}m HV BCD technology for PMUTbased biomedical ultrasound systems. It incorporates a bootstrapping technique to pass high-voltage pulses and a shunt branch for improved isolation. The differential T/R switch is designed to interface with bimorph electrodes although a singleended version can also interface with conventional PZT/CMUT transducers. Post-layout simulation results show that the switch circuit exhibits 64 ? on-resistance and -62 dB off-isolation. A figure-of-merit is proposed to compare ultrasound T/R switches. To the best of the authors' knowledge, this differential switch is the first of its kind being reported for PMUT biomedical ultrasound systems.},
             url = {https://doi.org/10.1109/ISCAS58744.2024.10558310},
        keywords = {CMOS integrated circuit, human-machine interface, PMUT, SPDT switch, T/R switch, ultrasound hand gesture recognition}
}