Title :
High-voltage pulser for ultrasound medical imaging applications
Author :
Zhao, Dongning ; Tan, Meng Tong ; Cha, Hyouk-Kyu ; Qu, Jinli ; Mei, Yan ; Hao Yu ; Basu, Arindam ; Je, Minkyu
Author_Institution :
Inst. of Microelectron., A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
Abstract :
This paper presents the design and implementation of a fully integrated high-voltage (HV) front-end transducer for MEMS ultrasonic applications. Each of the front-end transducers in the array includes a HV transmitting driver and a 50MHz capacitive micro-machined ultrasound transducer (CMUT). The design adapts low voltage integrated circuit (IC) design techniques to create integrated high voltage interfaces. Effective methods to implement high voltage interfaces to integrated CMOS/DMOS circuits are presented. Using a 0.18μm CMOS/DMOS process, simulation results of this interface IC show that can generated a 30V high voltage pulse from a 1.8V input triggering signal to drive a 50MHz MEMS ultrasound transducer with the largest 44pF capacitive load.
Keywords :
CMOS integrated circuits; bioacoustics; biomedical imaging; capacitive sensors; integrated circuit design; microsensors; ultrasonic imaging; ultrasonic transducers; CMUT; HV transmitting driver; MEMS ultrasonic applications; capacitance 44 pF; capacitive micromachined ultrasound transducer; frequency 50 MHz; high-voltage front-end transducer; high-voltage pulser; integrated CMOS-DMOS circuits; integrated high voltage interfaces; low voltage integrated circuit design; size 0.18 mum; ultrasound medical imaging applications; voltage 1.8 V; voltage 30 V; Arrays; Integrated circuits; MOSFETs; Switches; Transducers; Ultrasonic imaging; MEMS transducer; high voltage pulser; ultrasound;
Conference_Titel :
Integrated Circuits (ISIC), 2011 13th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-863-1
DOI :
10.1109/ISICir.2011.6131983
