电流传感器给出精确的AC和DC电流测量信号。这些是在计量和测量系统中总功耗都很好的传感器。ACS712电流传感器最高测量值为5A的直流或交流电流。我们为了更灵敏的电流测量增加了一个运算放大器增益级。通过调整增益(从4.27到47)可以测量非常小的电流。ACS712低电流传感器突围输出的模拟电压能够感测其电流线性变化。为了校准,首先设置输出偏移到最想要的级别(使其感测线的电流为零,读取具有DVM输出)。Features and Benefits
Low-noise analog signal path
Device bandwidth is set via the new FILTER pin
5 μs output rise time in response to step input current
80 kHz bandwidth
Total output error 1.5% at TA = 25°C
Small footprint, low-profile SOIC8 package
1.2 mΩ internal conductor resistance
2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8