为了验证二类超晶格红外探测器的性能,设计了探测器的驱动电路。因红外探测器的灵敏度高,设计了低噪声电源偏置电路,优化了电路板的布局。结合320×256长波红外焦平面组件特点设计的驱动电路为探测器组件提供电源与偏置电压、时序与控制信号。实验结果表明,该驱动电路能基本满足二类超晶格红外成像系统低噪声、高精度的要求。

To verify the performance of a type II superlattice infrared detector, a driving circuit is designed for the detector. Because the infrared detector has high sensitivity, a low noise power supply bias circuit which can optimize the layout of the circuit board is designed. The driving circuit designed according to the characteristics of a 320×256 long wave infrared focal plane array is used to provide power and bias voltages and timing and control signals for the detector assembly. The experimental results show that this driving circuit can meet the lower noise and high precision requirements of the type II superlattice infrared imaging system.