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AMC1301 3-Channel Isolated Current Acquisition Module 200KHz Bandwidth 3-Phase Motor Analog Isolation
Features:
- On-board SEPIC DC-DC converter supports wide input voltage (3.3V-12V DC).
- The minimum isolation voltage between channels is 2500VDC, and the minimum input and output isolation voltage is 2500VDC.
- The output offset voltage is typically 2mV.
- When the system gain is 8.2, the current acquisition range can be easily changed by changing its differential amplifier or its sampling resistor.
- External input reference level to change the reference level for different acquisition systems.
- Powered by 3.3VDC, the operating current is 100mA. Powered by 5.0VDC, the working current is 65mA.
- Support forward and reverse current acquisition.
- The minimum system analog bandwidth is 200KHz.
FAQ:
- Q: How to configure when positive and negative currents collected by STM32 internal ADC?
- The default output of the module is 0-3.3V, and the zero current output level is 1.65V. MCU or DSP that can be easily connected to a 3.3V analog reference. REF pin outputs a zero current level as a reference level with an output impedance of 5K.
Package Included:
- 1 x AMC1301 3-Channel Isolated Current Acquisition Module
- 1 x 2.54 2X6 Pin Header
- 3 x SMA Connectors 180°
1.The relationship between output signal and current: AMC1301 Gain=8.2, so OUT=Rx*8.2*1=8.2Rx(V).
2.On-board differential amplifier AD8605 provides a 1.65V reference, that is, the output signal swings at a midpoint of 1.65V.
3.Output Offset: AMC1301 input offset voltage is typically ±0.2mV. The output offset voltage is typically ±1.92mV, without considering the offset voltage of the differential amplifier.
