红外焦平面读出集成电路噪声分析研究

Noise analysis and study of ROIC for infrared focal plane array

信噪比和动态范围是衡量红外焦平面读出电路性能的两个重要指标,读出电路的随机噪声与这两个指标直接相关。本文对红外焦平面读出电路链路里的随机噪声进行了深入分析研究,同时给出每个噪声源的理论计算方法以及整个读出链路噪声的理论计算方法。最后用Matlab仿真计算出了各个电路参数对读出电路噪声的影响以及信噪比和动态范围的影响。

Signal noise ratio and dynamic range are two very important figures of merit of infrared focal plane readout integrated circuit（ROIC）.It is directly relative to temporal noise of ROIC.In this paper,we deeply analyze and study the temporal noise of ROIC,at the same time we give the theory of computing noise method of all kinds of noise sources and the whole ROIC noise.At last,we give the relations between the whole noise,SNR,DR and several circuit parameters.