文中提出了 32 0× 2 4 0红外非制冷焦平面驱动电路及焦平面阵列模拟输出信号的数字化设计方法。采用Xilinx公司的XC950 0系列综合可编程逻辑器件设计时序电路 ,以实现电路的小型化。采用VHDL语言进行设计 ,便于在试制过程中对电路的逻辑进行修改。采用TI公司的A/D转换器THS140 8对焦平面输出的 5.5M模拟信号进行模数转换 ,降低了后续传输过程中的干扰。为 32 0× 2 4 0凝视型非制冷红外热像仪的研制打下了基础。 In this paper, a 32 0 × 2 4 0 infrared uncooled focal plane drive circuit and a digital design method of focal plane array analog output signal are proposed. Using Xilinx XC950 0 series integrated programmable logic device design circuit, in order to achieve the circuit miniaturization. Using VHDL language design, easy to modify the logic of the circuit in the trial production process. Adopt TI company’s A / D converter THS140 8 focus plane output 5.5M analog signal to analog-digital conversion, reducing the subsequent transmission of interference. Laying a solid foundation for the development of 32 0 × 2 40 staring uncooled thermal imaging cameras.