Title :
A low noise amplifier employing noise canceling technique for ultrasound system applications
Author :
Chen, Jian-Shou ; Lu, Chih-Wen ; Hsia, Chin ; Chen, Yuan-Ho
Author_Institution :
Dept. of Eng. & Syst. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
In this paper, the noise canceling technique is proposed to enhance the performance of ultrasound low noise amplifier (LNA). This not only diminishes effectively noise figure (NF) but also increases voltage gain. Besides, by utilizing this methodology, the proposed LNA can have lower power consumption than the conventional one does. An ultrasound LNA example designed in TSMC 0.18-μm CMOS process shows 4.9 dB NFmin, 20 dB voltage gain and close to 100 MHz - 3-dB bandwidth with 20.3 mW power consumption.
Keywords :
CMOS analogue integrated circuits; interference suppression; low noise amplifiers; millimetre wave amplifiers; power consumption; ultrasonic transducers; LNA; NF; TSMC CMOS process; frequency 100 MHz; gain 20 dB; gain 4.9 dB; low noise amplifier; noise canceling technique; power 20.3 mW; power consumption; size 0.18 mum; ultrasonic transducers; ultrasound system application; Gain; Impedance; Low-noise amplifiers; Noise; Noise measurement; Power demand; Ultrasonic imaging; Low-Noise Amplifier; Transimpedance Amplifier; noise canceling;
Conference_Titel :
Instrumentation & Measurement, Sensor Network and Automation (IMSNA), 2012 International Symposium on
Conference_Location :
Sanya
Print_ISBN :
978-1-4673-2465-6
DOI :
10.1109/MSNA.2012.6324511
