A1359 Dual Programmable Linear IC

By Allegro MicroSystems, LLC 84

A1359 Dual Programmable Linear IC

Allegro Microsystem Inc.'s A1359 dual analog/PWM output, one-time programmable, linear IC allows the user to optimize the device in a finished sensor assembly. The A1359 linear IC provides a dual tracking output, where the PWM output tracks the analog output to within a ±3% mismatch. New applications for linear output Hall effect sensors, such as displacement and angular position, require high accuracy in conjunction with redundant outputs. This programmable linear device specifically achieves both goals. Targeted at the automotive market, end applications include electronic power steering (torque sensing), transmission component position, brake and clutch cylinder position, and various other industrial applications.

  • Output voltage clamps provide short circuit diagnostic capabilities
  • Immune to mechanical stress
  • Enhanced EMC performance for stringent automotive applications
  • Wide ambient temperature range: -40°C to +150°C
  • High speed chopping scheme minimizes quiescent voltage output (QVO) drift across temperature
  • PWM output tracks trimmed analog output to within ±3% mismatch, providing a digital signal to confirm that the analog output is transmitting a valid signal
  • Factory-programmed offset, sensitivity, and polarity yield a highly accurate analog output and corresponding PWM tracking output
  • Operates with 4.5 V to 5.5 V supply voltage

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