TY - GEN
T1 - High gain and wide dynamic range front-end receiver for weak signal acoustic detector
AU - Mao, F.
AU - Xu, B.
AU - Guo, F. M.
AU - Wang, Y. P.
AU - Bian, H. Y.
AU - Chu, J. H.
PY - 2012
Y1 - 2012
N2 - The novel acoustic analog front-end receiver chip basing all-CMOS technology was designed to amplify the weak signal depressed the harmonic distortion and interference of adjacent channels for multi-channel acoustic imaging system. The 48 channel variable gain amplifiers (VGA) with the exponential gain control, multi-channel output data strobe, output buffer and continuous-time and anti-aliasing fourth-order Butterworth low pass filter for high signal-noise-ration (SNR) of analog-to-digital convertor (ADC), and integrated a vertical shift register. By the simulation verification, processing and test, the system shown linearity gain dynamic range 52dB, the equivalent input noise 5.2nV /Hz1/2@ 1.5MHz, and -3dB bandwidth on 15MHz~92MHz. When the gain was less than 55dB, the second-order harmonic distortion was less than -40dB, the receiving sensitivity 50μV while signal to noise ration (SNR) 30dB, the power consumption of each channel 6mW at 5V power supply.
AB - The novel acoustic analog front-end receiver chip basing all-CMOS technology was designed to amplify the weak signal depressed the harmonic distortion and interference of adjacent channels for multi-channel acoustic imaging system. The 48 channel variable gain amplifiers (VGA) with the exponential gain control, multi-channel output data strobe, output buffer and continuous-time and anti-aliasing fourth-order Butterworth low pass filter for high signal-noise-ration (SNR) of analog-to-digital convertor (ADC), and integrated a vertical shift register. By the simulation verification, processing and test, the system shown linearity gain dynamic range 52dB, the equivalent input noise 5.2nV /Hz1/2@ 1.5MHz, and -3dB bandwidth on 15MHz~92MHz. When the gain was less than 55dB, the second-order harmonic distortion was less than -40dB, the receiving sensitivity 50μV while signal to noise ration (SNR) 30dB, the power consumption of each channel 6mW at 5V power supply.
KW - Front-end receiver
KW - Harmonic distortion
KW - Multi-channel detector
KW - Variable gain amplifier
KW - Weak signa readoutl
UR - https://www.scopus.com/pages/publications/84874413493
U2 - 10.1109/IMCCC.2012.86
DO - 10.1109/IMCCC.2012.86
M3 - 会议稿件
AN - SCOPUS:84874413493
SN - 9780769549354
T3 - Proceedings of the 2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012
SP - 350
EP - 354
BT - Proceedings of the 2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012
T2 - 2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012
Y2 - 8 December 2012 through 10 December 2012
ER -