The ACS712 20A Current Sensor IC (ACS712ELCTR-20A-T) provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die.

Applied current flowing through this copper conduction path generates a magnetic field that is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.

A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging.

Features:

1. The 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. Total output error 1.5% at TA = 25°C.
6. Small footprint, low-profile SOIC8 package.
7. 1.2 mΩ internal conductor resistance.
8. 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8.
9. 5.0 V, single-supply operation.
10. 66 to 185 mV/A output sensitivity.
11. Output voltage proportional to AC or DC currents.
12. Factory-trimmed for accuracy.
13. Extremely stable output offset voltage.
14. Nearly zero magnetic hystereses.
15. Ratiometric output from a supply voltage.

Package Includes:

1 x ACS712 20A Current Sensor IC (ACS712ELCTR-20A-T).