首页>
外国专利>
Method and system to differentially enhance sensor dynamic range using enhanced common mode reset
Method and system to differentially enhance sensor dynamic range using enhanced common mode reset
展开▼
机译:使用增强的共模复位来差异地增强传感器动态范围的方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
Effective differential dynamic range and common mode rejection in a differential pixel detector are enhanced by capturing and isolating differential detector charge output before using common mode reset to avoid detector saturation due to common mode components of optical energy to be detected. Differential charge is stored into an integration capacitor associated with an operational amplifier coupled to receive as input the differential detector outputs. Common mode reset is achieved by setting storage capacitors coupled to the outputs of the differential detector at least once within an integration time T before storage potential exceeds a saturation voltage Vsat for the photodetector.
展开▼
机译:通过在使用共模复位之前捕获和隔离差分检测器电荷输出,可以增强差分像素检测器中的有效差分动态范围和共模抑制能力,从而避免由于待检测光能的共模分量而导致检测器饱和。差分电荷被存储到与运算放大器相关联的积分电容器中,运算放大器被耦合为接收差分检测器输出作为输入。通过在存储电势超过光检测器的饱和电压V sat Sub>之前的积分时间内,至少设置一次耦合到差分检测器输出的存储电容器来实现共模复位。
展开▼