Low Current Sensor ACS723 - 5A current sensor - SparkFun SEN-14544

Current sensor operating in the range from 10 mA to 5 A on the basis of Hall effect. The output is an analog voltage. The supply voltage is 5 V. It has a built-in amplifier and potentiometer for adjusting the sensitivity.

The module can measure direct current and alternating current in the range of up to 5 A, and its basic sensitivity is 400 mV / A. Default sampling rate is 20 kHz. Built-in amplifier is able to achieve 2.2 to 22 V / V.

The module has the following pins:

The output voltage proportional to the current

IP+ and IP-.

• Supply voltage: 5 V
• Analog output
• Current measurement: from 10 mA to 5 A
• Sampling rate: 20 kHz (the possibility of setting to 80 kHz)
• System: ACS723
• Complete electrical isolation of the control signal, from the measured current
• Basic sensitivity without amplification: 400 mV / A
• Adjustable sensitivity, built-in amplifier: from 2.2 to 22 V / V
• Module dimensions: 32 x 15 mm

• The website of the manufacturer of SparkFun SEN-14544
• User manual
• Diagram of the module
• System documentation of ACS723
• Eagle program files 
• Files on GitHub