Title :
A low-noise, wideband electronic system for pulse-echo ultrasound imaging with CMUT arrays
Author :
Caronti, Alessandro ; Caliano, Giosué ; Savoia, Alessandro ; Pappalardo, Massimo ; Carotenuto, Riccardo
Author_Institution :
Dipt. di Ingegneria Elettronica, Univ. degli Studi di Roma, Italy
Abstract :
Design criteria are given for low-noise, wideband front-end electronics suitable for pulse-echo operation of capacitive micromachined ultrasonic transducers (CMUTs). To investigate which configuration of the receiving amplifier assures the best performance, the basic circuits of voltage and transimpedance amplifiers are analyzed, optimized and compared through PSpice simulations. Custom electronics are also realized, based on the reported analysis, and the performances are evaluated using a fabricated 64-element CMUT array.
Keywords :
acoustic receivers; amplifiers; capacitive sensors; circuit analysis computing; linear network analysis; micromechanical devices; ultrasonic imaging; ultrasonic transducer arrays; CMUT arrays; PSpice; capacitive micro-machined ultrasonic transducers; custom electronics; low-noise electronic system; network analysis; pulse-echo ultrasound imaging; receiving amplifier; transimpedance amplifier; voltage amplifier; wideband electronic system; Analytical models; Broadband amplifiers; Circuits; Performance analysis; Pulse amplifiers; Ultra wideband technology; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers; Voltage;
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
Print_ISBN :
0-7803-8412-1
DOI :
10.1109/ULTSYM.2004.1418280
