Development of integrated preamplifier for high frequency ultrasonic transducer

Author

Choi, Hojong ; Li, Xiang ; Lau, Sien-Ting ; Hu, ChangHong ; Zhou, Qifa ; Shung, K. Kirk

Author_Institution

NIH Resource Center for Med. Ultrasonic Transducer Technol. & Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA

fYear

2010

fDate

11-14 Oct. 2010

Firstpage

1964

Lastpage

1967

Abstract

This paper describes the design of an integrated circuit consisting of a preamplifier with Sallen-Key Butterworth filter for direct interfacing to a high frequency ultrasonic transducer. This preamplifier was fabricated with the IBM 7WL process. Sallen-key filter is used to increase the gain of the front-end circuit. The measured voltage gain of one of the selected front end circuits for the preamplifier with Sallen-Key filter is 35.61dB at 100MHz with a bandwidth of 87.3% and 8.58mW DC power consumption. Pulse-echo responses and wire-phantom images with ultrasonic transducers have been acquired with the front end circuit.

Keywords

Butterworth filters; biomedical electronics; biomedical transducers; biomedical ultrasonics; integrated circuit design; phantoms; preamplifiers; ultrasonic transducers; IBM 7WL; Sallen-Key Butterworth filter; frequency 100 MHz; front-end circuit; high frequency ultrasonic transducer; integrated preamplifier; power 8.58 mW; pulse-echo response; ultrasonic transducers; wire-phantom images; Capacitance; Heterojunction bipolar transistors; MOSFET circuits; Noise; Preamplifiers; Transducers; Ultrasonic transducers; Electrical Impedance Matching; Front-End Circuits; Integrated Preamplifier; Sallen-Key Butterworth Filter; Ultrasonic Transducer;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2010 IEEE

Conference_Location

San Diego, CA

ISSN

1948-5719

Print_ISBN

978-1-4577-0382-9

Type

conf

DOI

10.1109/ULTSYM.2010.5935544

Filename

5935544