Low-Noise Analog ASIC for Silicon and CdTe Sensors
Low-Noise Analog ASIC for Silicon and CdTe Sensors
复制标题
适用于硅和 CdTe 传感器的低噪声模拟 ASIC
DOI:
10.1109/tns.2010.2063038
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发表时间:
2010
影响因子:
1.8
通讯作者:
Y. Mito
中科院分区:
文献类型:
--
作者:
T. Kishishita;G. Sato;H. Ikeda;T. Takahashi;T. Kiyuna;Y. Mito
We report on the recent development of a 32-channel low-noise analog front-end ASIC "KW03" for hard X-ray and gamma-ray detectors. The ASIC aims for the readout of strip or pixel (pad) detectors utilizing silicon and cadmium telluride (CdTe) as detector materials. Each readout channel includes a charge-sensitive amplifier, bandpass filters and a sample-and-hold circuit. It also includes a leakage current compensation and pole-zero cancellation circuits to meet the various detector requirements. The equivalent noise level of a typical channel reaches 89 e- @ 0 pF (rms) and shows an input-capacitance characteristic of 7.5 e-/pF between 0 pF and 10 pF with a power consumption of 3 mW per channel. We mounted the ASIC on a low-temperature co-fired ceramic (LTCC) package and evaluated the spectral performance by combining with a CdTe diode detector. As a result, the gamma-ray spectrum of radioactive source 241 Am was obtained with a good energy resolution of 2.23 keV (FWHM) for gamma rays of 59.5 keV at -20°C.
DOI:
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发表时间:
2003
期刊:
NIM A 2003 512
影响因子:
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发表时间:
2005
期刊:
IEEE Trans.Nucl.Sci. Vol.52 No.5III
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发表时间:
2004
期刊:
IEEE Trans.Nucl.Sci Vol.51 No.3III
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