Description

Current Sensor Module A5

• This current sensor board is based on the Allegro ACS712ELCTR-05A bi-directional hall-effect current sensor chip that detects positive and negative flowing currents in the range of minus 5 Amps to positive 5 Amps.
• The board operates at 5V DC and the current flow through the sensor is converted to an output voltage starting at 1/2Vcc (or 2.5V) for no current flow and moves up 185mV per amp for positive current or down -185mV per amp for negative current.

For example:

• The output voltage at 2 amps would be (2.5V (0.185 * 2)) = 2.870 V
• The output voltage at -5 amps would be (2.5V – (0.185 * 5)) = 1.575 V

SPECIFICATIONS:

• 185 mV/A output sensitivity
• 5.0 V, single supply operation
• Output voltage proportional to AC or DC currents
• Factory-trimmed for accuracy
• Extremely stable output offset voltage
• Nearly zero magnetic hysteresis
• Ratiometric output from supply voltage
• 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

 

VCC	5V DC Nominal
Measurement Range	-5 to 5 A
Voltage at 0A	VCC/2 (Nominally 2.5V DC)
Scale Factor	185mV per A
Dimensions:
Length	31.73 mm (1.24″)
Width	13.25 mm (0.52″)
Height	14 mm (0.55″)
Weight	2.72 g (0.096 oz)

 

Package Included:

• 1 X ACS712 Current Sensor Module 5A