A1369: Customer Programmable Linear Hall-Effect Sensor Optimized for Use in Current Sensing Applications


The Allegro™ A1369 is a customer programmable, high accuracy linear Hall effect-based current sensor IC. It is packaged in a thin 3-pin SIP package to allow for easy integration with a magnetic core to create a highly accurate current sensing module. The programmable nature of the A1369 enables it to account for manufacturing tolerances in the final current sensing module assembly.

This temperature-stable device is available in a through-hole single in-line package (TO-92). The accuracy of the device is enhanced via programmability on the output pin for end-of-line optimization without the added complexity and cost of a fully programmable device. The device features One-Time-Programming (OTP), using non-volatile memory, to optimize device sensitivity and the quiescent output voltage (QVO) (output with no magnetic field) for a given application or circuit. The A1369 also allow for optimized performance over temperature through programming the temperature coefficient for both Sensitivity and QVO at Allegro end-of-line test.

These ratiometric Hall effect sensors provide a voltage output that is proportional to the applied magnetic field. The quiescent voltage output is user-adjustable around 50% of the supply voltage, and the output sensitivity is programmable within a range of –8.5 mV/G to –12.5 mV/G for the A1369-10 and –22 mV/G to –26 mV/G for the A1369-24.

The features of this linear device makes it ideal for use in industrial applications requiring high accuracy and are guaranteed over a wide temperature range, –40°C to+85°C.

Top Features

  • Customer programmable offset, and sensitivity
  • Sensitivity and QVO temperature coefficients programmed at Allegro for improved accuracy
  • Output value decreases with South Magnetic Field and increases with North Magnetic field.
  • 3-pin SIP package for easy integration with magnetic concentrator
  • Low noise, moderate bandwidth, analog output
  • High speed chopping scheme minimizes QVO drift over temperature
  • Temperature-stable quiescent voltage output and sensitivity
  • Precise recoverability after temperature cycling
  • Output voltage clamps provide short circuit diagnostic capabilities
  • Under voltage lock-out (UVLO)
  • Wide ambient temperature range: -40ºC to +85ºC
  • Immune to mechanical stress

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check Stock
ASEK-1369-73369-SUBKIT-T DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Distributor Stock
ASEK-1369-73369-T-KIT DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Distributor Stock
A1369EUA-10-T 3-lead SIP -40°C to 85°C Yes View Data Contact your
local sales rep
Distributor Stock
A1369EUA-24-T 3-lead SIP -40°C to 85°C Yes View Data Contact your
local sales rep
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.



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