A1319

A1318 and A1319 Linear Hall-Effect Sensor ICs with Analog Output Available in a Miniature, Low Profile Surface Mount Package Features and Benefits 3.3 V supply operation QVO temperature coefficient programmed at Allegro™ for improved accuracy Miniature package options 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 Output voltage clamps provide short circuit diagnostic capabilities Undervoltage lockout (UVLO) Wide ambient temperature range: –40°C to 150°C Immune to mechanical stress Enhanced EMC performance for stringent automotive applications Packages 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) 3-pin ultramini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) Description New applications for linear output Hall-effect sensors, such as displacement and angular position, require higher accuracy and smaller package sizes. The Allegro A1318 and A1319 linear Hall-effect sensor ICs have been designed specifically to meet both requirements. These temperature-stable devices are available in both surface-mount and through hole packages. The accuracy of each device is enhanced via end-of-line optimization. Each device features non-volatile memory to optimize device sensitivity and the quiescent voltage output (QVO: output in the absence of a magnetic field) for a given application or circu...