摘要
基于ASMC0.35μm2P3M CMOS工艺,完成了对X射线探测器前端信号处理芯片的设计.该设计主要包括前端读出电路和信号处理电路.在模拟仿真的基础上完成了版图布局和设计,并对芯片进行了流片验证和测试.测试结果表明,该芯片能探测到的光电流范围为10pA到5nA.并实现了光电转换,多路选择等功能.该芯片的电源电压5V,整体功耗为40mW,工作频率可在100kHz到1MHz之间,线性度达到0.35%,具有较低的噪声性能.
Based on ASMC 0.35μm 2P3M CMOS process,a X ray detector Front-End signal processing chip is designed. This design is composed of Front-end readout circuit and signal processing circuit. Based on simulating results and layout, this chip has already been taped out and tested. Taped out results demonstrate that this chip has the functions of photoelectric conversion ,many way selection . 10pA--5nA photo production current can be detected in this circuit, which has 100kHz-- 1MHz work clock period, power supply 5V, 40mW power consumption. The circuit has 0.35 % of linearity low noise characteristics.
出处
《微电子学与计算机》
CSCD
北大核心
2009年第11期86-89,共4页
Microelectronics & Computer
