Journal
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
Volume 70, Issue 5, Pages 1709-1713Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSII.2023.3255307
Keywords
Ultrasound imaging; driver; pulser; PMUT; AFE
Categories
Ask authors/readers for more resources
The brief presents a design solution for a compact and power efficient bipolar return to zero (RZ) 3-level high-voltage TX pulser for high-performance portable ultrasound medical imaging systems. The pulser is integrated in the front end of a 1-10 MHz PMUT probe and ensures high transmitting linearity with minimum power transistors. It features programmable variable delays and rise/fall times controlled through a digital interface and achieves a small R-eq of 2.24 ohm.
The brief presents a design solution for a bipolar return to zero (RZ) 3-level high-voltage TX pulser for high performance portable ultrasound medical imaging systems. Designed to be integrated in the front end of a PMUT probe composed by a 64-channel array working in the 1-10 MHz frequency range, the pulser is compact and power efficient as it employs minimum number of power transistors while ensuring high transmitting linearity because of the implementation of the RZ state. The circuit presents programmable features such as variable delays and rise/fall times to be controlled independently through a digital interface and it dissipates only 4.5 mW to bias the PMUT in RX state while achieving a small R-eq (2.24 ohm). Transistor level and post-layout simulations performed in a BCD-SOI 0.16-mu m technology are reported to demonstrate the effectiveness of the approach.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available