A1304

A1304 Linear Hall-Effect Sensor IC with Analog Output, Available in a Miniature, Low-Profile Surface Mount Package 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. TheAllegroA1304 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 BiCMOS 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. App...