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

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

408

Lastpage

411

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits (ISIC), 2011 13th International Symposium on

Conference_Location

Singapore

Print_ISBN

978-1-61284-863-1

Type

conf

DOI

10.1109/ISICir.2011.6131983

Filename

6131983