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ACS70310 Linear Hall IC

Allegro's sensor has industry-leading accuracy and resolution with uncompromising bandwidth

Image of Allegro's ACS70310 Linear Hall ICAllegro's ACS70310 provides the highest accuracy current sensor IC for core-based current sensing they have ever offered. This sensor is a programmable linear Hall-effect current sensor IC that has been designed to achieve industry-leading accuracy and resolution without compromising bandwidth. Allegro's programming provides a sensitivity of ±1.2% and zero-amp output voltage offset of only ±5mV over the operating temperature range of -40°C to 150°C. Temperature compensation is performed in the digital domain with integrated EEPROM technology which allows the sensor to maintain a 2 µS response time and 240 kHz bandwidth analog signal path, making this device ideal for HEV inverter, DC-to-DC converter, and electric power steering (EPS) applications.

The on-chip regulator provides reverse battery protection and high immunity to electrical overstress on the supply voltage line. This ratiometric Hall-effect sensor IC provides a voltage output that is proportional to the applied magnetic field. The user can configure the sensitivity and quiescent (zero field) output voltage through programming on the VCC and output pins to optimize performance in the end application. The quiescent output voltage is user-adjustable, around 50% (bidirectional configuration) or 10% (unidirectional configuration) of the supply voltage, VCC, and the output sensitivity is adjustable within the range of 0.5 mV/G to 11.5 mV/G. Ratiometry of the output is also programmable and can be disabled.

The sensor IC incorporates a highly sensitive Hall element with a BiCMOS interface integrated circuit that employs a low-noise, small-signal, high-gain amplifier, a clamped low-impedance output stage, and a proprietary, high-bandwidth dynamic offset cancellation technique. These advances in Hall-effect technology work together to provide an industry-leading sensing resolution at the full 240 kHz bandwidth. Broken ground wire detection and user-selectable output voltage clamps enhance reliability in safety-critical automotive applications.

Features
  • Factory programming
  • 240 kHz bandwidth
  • Regulated supply and protected output
  • Uni/bidirectional operation
  • Factory-trimmed oscillator
  • Customer programmable
  • Output voltage clamps and broken wire functions

ACS70310 Linear Hall IC

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
VERY HIGH PRECISION LINEAR HALL-ACS70310LKTATN-2P5B5-CVERY HIGH PRECISION LINEAR HALL-0View Details
VERY HIGH PRECISION LINEAR HALL-ACS70310LKTATN-005B5-CVERY HIGH PRECISION LINEAR HALL-0View Details
VERY HIGH PRECISION LINEAR HALL-ACS70310LKTATN-010B5-CVERY HIGH PRECISION LINEAR HALL-72 - ImmediateView Details
VERY HIGH PRECISION LINEAR HALL-ACS70310LKTATN-001B5-CVERY HIGH PRECISION LINEAR HALL-1046 - ImmediateView Details
Published: 2019-09-09