A new integrated differential three-level highvoltage pulser output stage to drive capacitive micromachined ultrasonic transducers (CMUTs) is proposed in this paper. A topology comparison between the new differential output stage and the most commonly used single-ended topology is performed in order to assess the performance of the new output stage. The new topology achieves a 10.9% lower power consumption and an area reduction of 23.5% for the same specifications. The differential output stage proposed is able to generate pulses with a slew rate of 2 V/ns, a frequency of 5MHz and voltage levels of 60, 80, 100V using 0.039mm2 of chip area. The power consumption is 0.951mW for a 30 pF CMUT load. The design presented is implemented in a 0.35 μm high-voltage process.
|Title of host publication||Proceedings of the 11th Conference on PhD Research in Microelectronics and Electronics (IEEE PRIME 2015)|
|Publication status||Published - 2015|
|Event||The 11th Conference on PhD Research in Microelectronics and Electronics - Glasgow, Scotland, United Kingdom|
Duration: 29 Jun 2015 → 2 Jul 2015
Conference number: 11
|Conference||The 11th Conference on PhD Research in Microelectronics and Electronics|
|Period||29/06/2015 → 02/07/2015|