ACS712 Datasheet – Hall Effect Current Sensor – Allegro

Part Number : ACS712, ACS712ELCTR-05B-T

Function : Fully Integrated / Hall Effect-Based Linear Current Sensor

Package : SOIC 8 Pin

Manufactures : Allegro MicroSystems

Image

ACS712 hall sensor

Description

The Allegro ACS712 provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.

Pinout

ACS712 datasheet pinout

Features and Benefits

1. Low-noise analog signal path

2. Device bandwidth is set via the new FILTER pin

3. 5 μs output rise time in response to step input current

4. 80 kHz bandwidth

5. Output voltage proportional to AC or DC currents

6. Factory-trimmed for accuracy

7. Extremely stable output offset voltage

8. Nearly zero magnetic hysteresis

9. Ratiometric output from supply voltage

 

Terminal List Table

Number | Name | Description
1 and 2, IP+ : Terminals for current being sensed; fused internally
3 and 4, IP– : Terminals for current being sensed; fused internally
5, GND : Signal ground terminal
6, FILTER : Terminal for external capacitor that sets bandwidth
7, VIOUT : Analog output signal
8, VCC : Device power supply terminal

 

Reference Site :

http://henrysbench.capnfatz.com/henrys-bench/arduino-current-measurements/acs712-current-sensor-user-manual/

http://www.allegromicro.com/en/Products/Current-Sensor-ICs/Zero-To-Fifty-Amp-Integrated-Conductor-Sensor-ICs/ACS712.aspx

 

ACS712 Datasheet