Current Sensors

Fully Integrated, Hall-Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor

ACS712

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Product Details

Top Features

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 T_A = 25°C
Small footprint, low-profile SOIC8 package
1.2 mΩ internal conductor resistance
2.1 kV_RMS minimum isolation voltage from pins 1-4 to pins 5-8
5.0 V, single supply operation
66 to 185 mV/A output sensitivity
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

Part Number Specifications and Availability

ACS712 Product Overview

Allegro has developed an innovative line of fully integrated current sensor ICs that offers several advantages over other current sensor solutions. These Allegro sensors are incredibly small and are offered in standard automotive qualified surface mount packages.