一种辐照加固的航空总线收发器电路设计

文章分析了电子元器件在空间辐照影响下的一些性能变化，考虑实际使用环境，设计了一种辐照加固的航空总线收发器电路。该电路主要实现在航空总线与协议处理电路之间信号转化的功能。与以往的双极工艺不同，文中所述的电路采用CMOS工艺结构，在实现高驱动能力、低噪声等性能的同时，降低了功耗。此外，还对电路结构进行改进，综合考虑了芯片面积等指标，选择采用体硅加固方式，有效提高了电路抗辐照的能力。收发器电路采用中微晶园单多晶双铝1．0μm工艺流片，面积约为6．45mm×6．55mm，经实验测试表明，电路抗辐照总剂量能力达到300kRad（Si）．

Design of a Radiation Hardened Aero-bus Transceiver

A radiation hardened aero-bus transceiver,which can perform high driving capability,low noise and low power supply,is designed based on the analysis of the features of devices in radiation conditions.A modified CMOS technology has been adopted to improve the anti-radiation ability.The transceiver uses single poly double metal 1.0μm process,and the chip area is about 6.45mm×6.55mm.The experimental result shows that the anti-radiation ability of aero-bus transceiver is over the total dose range of 300k rad(Si).