高速、高准确度VXI总线DMM模块的设计  

The design of high-speed and high-accuracy VXI bus modular DMM

作　　者：李迎[1] 柳长源[1] 马玉梅[1] 

机构地区：[1]哈尔滨理工大学,哈尔滨150040

出　　处：《电测与仪表》2004年第4期43-45,共3页Electrical Measurement & Instrumentation

摘　　要：依据Σ-Δ模数转换器高速无迟滞、高分辨率、低噪声等特点,采用最新的AD转换芯片LTC2440,设计了高速、高准确度数字多用表VXI模块,并进行了误差分析。According to the characteristics of the Σ-ΔADC in high-speed with no latency,high resolution and low noise,a high-speed and high-accuracy VXI bus Modular DMM is designed by using the latest chip LTC2440.Errors have been analyzed and programmable calibration has been brought forward for modifying errors.

关 键 词：数字多用表 VXI模块 模数转换器 程控校准 LTC2440 误差分析 

分 类 号：TM938.1[电气工程—电力电子与电力传动]