Lots of things around voltage isolation, external filter, voltage, hall effect, effect, output voltage, circuit, and sensitivity are explained in the datasheet. The datasheet tells us explanation like current, output error, the output voltage, chopper stabilization, filter, integrated hall effect, interface circuit, and microsystems.
In this datasheet we can read information around resistance, power, characteristic performance, current sensor, accuracy range, scale, ambient temperature, and range. These are excerpted from this datasheet:
Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. 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 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
In addition, the datasheet explains discussion about temperature, accuracy, output, sensor, stabilization technique, isolation, and linear current sensor.