A1304 Datasheet | Allegro MicroSystems

FEATURES AND BENEFITS - 3.3 V supply operation - Allegro factory-programmed offset and sensitivity - Miniature package - High-bandwidth, low-noise analog output - High-speed chopping scheme minimizes QVO drift across operating temperature range - Temperature-stable quiescent voltage output and sensitivity - Precise recoverability after temperature cycling - Wide ambient temperature range: - 40°C to 85°C - Immune to mechanical stress Package: 3-Pin Surface Mount SOT23-W (suffix LH) DESCRIPTION New applications for linear output Hall-effect sensors require medium accuracy and smaller package size. The Allegro A1304 linear Hall-effect sensor IC has been designed specifically to achieve both goals. This temperature-stable device is available in a miniature surface mount package (SOT23-W). This ratiometric Hall-effect sensor provides a voltage output that is proportional to the applied magnetic field and features a quiescent voltage output of 50% of the supply voltage. Each Bi CMOS monolithic circuit integrates a Hall element, offset and sensitivity trim circuitry to correct for the variation in the Hall element, a small-signal high-gain amplifier, and a proprietary dynamic offset cancellation technique. The A1304 sensor IC is available in a 3-pin surface mount SOT-23W style package (LH suffix). The package is lead (Pb) free, with 100% matte tin leadframe plating. Approximate footprint Not to scale V+ VCC CBYPASS A1304-DS, Rev. 4 MCO-0000508 Dynamic Offset Cancellation Tuned Filter Sensitivity Offset Trim Control GND Functional Block Diagram VOUT November 18, 2021 Linear Hall-Effect Sensor IC with Analog Output, Available in a Miniature, Low-Profile Surface Mount Package SELECTION GUIDE Part Number A1304ELHLX-T A1304ELHLX-05-T Sensitivity (typ)(m V/G) - Contact Allegro™ for additional packing options Packing- 10,000 pieces per reel 10,000 pieces per...