一种新型低噪声高均匀性红外焦平面读出电路  

Novel Infrared Focal Array Readout IC with High Uniformity and Low Noise

作　　者：吕坚[1] 周云[1] 张东路[1] 蒋亚东[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,成都610054

出　　处：《微电子学》2010年第2期239-242,共4页Microelectronics

基　　金：国家杰出青年基金资助项目(60525101)

摘　　要：针对非制冷微测辐射热计焦平面阵列,设计了一种低噪声、高均匀性的读出电路。该读出电路结合相关双采样技术和自归零技术,对固定图像噪声以及l/f噪声都能起到很好的抑制作用。目前,该电路已应用到160×120阵列的非制冷微测辐射热计焦平面上,并在0.5μm CMOS工艺下成功流片。测试结果表明,固定图像噪声仅为0.087 V,均方根噪声为256μV。A novel read-out circuit featuring low noise and high uniformity was designed for uncooled micro-bolometer focal array. By using double-sampling and auto-zero adjustment technology, fixed pattern noise and 1/f noise were sup： pressed. The circuit was implemented in 0.5μ CMOS technology in a 160×120 uncooled micro-bolometer focal array. Test results showed that the circuit had a fixed-pattern noise of 0. 087 V and an RMS noise of 256μV.

关 键 词：读出电路 微测辐射热计 读出均匀性 

分 类 号：TN432[电子电信—微电子学与固体电子学]