特点:
●13个电流量程
●自适应量程变化
●动态范围0.1nA- 10mA(双极性)
●可选两输入通道求和
●集成数字化模块和通讯模块
●集成数字滤波
●集成精密自校准测试电流源
●集成高压(可选)
●可外部同步
●光纤控制和数据接口
应用:
●法拉第筒系统
●电离室
●光敏二极管
●一般低电流测量
选配:
●高压输出(最大2kV)
●200mA电流范围
●外部校准电流回路(替代输入电流求和)
●气动驱动控制
参数:
工作原理:多量程电流电压转换器,50kHz低通滤波器,可编程放大器,逐次逼近双极性ADC
输入阻抗:小于1欧姆
输入保护:背对背快速二极管对;IV转换电路中有限流电阻
噪声:满量程RMS噪声大于 0.01% (10mA,1mA,100µA 10µA量程)
绝对精度:读数在±(0.07%理想读数+0.03%满刻度)(相对标准外部电流源)
稳定度:输出漂移< 5 ppm /C/小时
数字滤波:周期软件可调矩形滤波器
电流范围:总计16个,13个独特范围(10 mA, 5 mA, 2 mA, 1 mA, 500 µA, 200 µA,
100 µA, 50 µA, 20 µA, 10 µA, 5 µA, 2 µA 1 µA.),自动判别转换。
数字化:16bit双极性逐次逼近ADC,250kHz
外部门:光纤逻辑电平输入
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