A1324

A1324, A1325, and A1326 Low-Noise Linear Hall-Effect Sensor ICs with Analog Output FEATURES AND BENEFITS Temperature-stable quiescent output voltage and sensitivity Output voltage proportional to magnetic flux density Low-noise output increases accuracy Precise recoverability after temperature cycling Ratiometric rail-to-rail output Wide ambient temperature range: –40°C to 150°C Immune to mechanical stress Solid-state reliability Enhanced EMC performance for stringent automotive applications PACKAGES 3-pin ultramini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) Approximate footprint DESCRIPTION New applications for linear output Hall-effect devices, such as displacement, angular position, and current measurement, require high accuracy in conjunction with small package size. The Allegro™ A1324, A1325, and A1326 linear Hall-effect sensor ICs are designed specifically to achieve both goals. This temperature-stable device is available in a miniature surface mount package (SOT23W) and an ultra-mini through-hole single in-line package. These ratiometric Hall effect sensor ICs provide a voltage output that is proportional to the applied magnetic field. They feature a quiescent voltage output of 50% of the supply voltage. The A1324/25/26 feature factory programmed sensitivities of 5.0 mV/G, 3.125 mV/G, and 2.5 mV/G, respectively. The features of these linear devices make them ideal for use in automotive and industrial applica...