A fast, compact solution for low noise charge preamplifiers
A fast, compact solution for low noise charge preamplifiers
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DOI：
10.1016/s0168-9002(98)01371-0
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发表时间：
1999-03
影响因子：
1.4
通讯作者：
L. Fabris;N. Madden;H. Yaver
中科院分区：
文献类型：
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作者：
L. Fabris;N. Madden;H. Yaver
采用跨导增益级和电压增益级实现的低噪声电荷敏感前置放大器的新结构已经得到了深入的研究。具有独特的高开环增益，同时具有良好的低噪声性能和高负载驱动能力。该方案的实现只使用了最少数量的商用部件，从而形成了一个非常紧凑且功耗相对较低的电路。对该电路的动态响应和噪声性能进行了详细的理论分析。几个测试和测量进行了验证理论，并给出了结果。
A new structure for low noise charge sensitive preamplifiers, implemented using a transconductance gain stage plus a voltage gain stage, has been thoroughly investigated. Uniquely high values of open-loop gain have been demonstrated, together with good low noise performance and high load driving capability. Implementation of this scheme uses only a minimal number of commercial parts, resulting in a very compact and relatively low power circuit. A detailed theoretical analysis of the dynamic response and noise performance of the circuit is given. Several tests and measurements have been performed to validate the theory and the results are presented.