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High-Precision Programmable Linear Hall-Effect Sensor IC with Advanced Linearization

A1343

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The A1343 provides highly accurate and linear output in the presence of nonlinear magnetic fields, using advanced 32-segment linearization. Its programmable features and EEPROM memory enable optimized performance and simplified calibration.

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  • Advanced 32-segment output linearization functionality enables high output accuracy and linearity in the presence of non-linear input magnetic fields
  • Selectable digital SENT (Single Edge Nibble Transmission) and PWM (Pulse Width Modulation) output
  • SENT output supports two modes: SAEJ2716 JAN2010 and Allegro Proprietary with Enhanced Programmable Features
  • Customer programmable magnetic range selection and offset, sensitivity, bandwidth, output clamps, 1st and 2nd order temperature compensation
  • Simultaneous programming of all parameters for accurate and efficient system optimization
  • Initial sensitivity temperature coefficient and magnetic offset drift preset at Allegro, for maximum device accuracy without requiring customer temperature testing
  • Temperature-stable, mechanical stress immune, and extremely low noise device output via proprietary four-phase chopper stabilization and differential circuit design techniques
  • Wide ambient temperature range: –40°C to 150°C
  • Operates with 4.5 to 5.5 V supply voltage
  • Allegro Sensor Bias LDO

The A1343 is available in a lead (Pb) free 8-pin TSSOP package (LE suffix), with 100% matte tin leadframe plating.

LE Package Documentation

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Part Number Specifications and Availability

Documentation and Resources

Documentation

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Application Note
Using the SENT Communications Output Protocol with A1341 and A1343 Devices
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Documents Found: 32
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Hardware Kit or Board
ASEK-05 Sensor IC Evaluation Kit