A1309

A1308 and A1309 Linear Hall-Effect Sensor ICs with Analog Output Available in a Miniature, Low-Profile Surface-Mount Package FEATURES AND BENEFITS 5 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 (SOT-23W and SIP -L temp range), –40°C to 125°C (SIP -K temp range) Immune to mechanical stress Enhanced EMC performance for stringent automotive applications PACKAGES: 3-pin SOT-23W 2 mm × 3 mm × 1 mm (suffix LH) 3-pin ultramini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) Not to scale DESCRIPTION New applications for linear output Hall-effect sensors, such as displacement and angular position, require higher accuracy and smaller package sizes. The Allegro A1308 and A1309 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 nonvolatile memory to optimize device sensitivity and the quiescent voltage output (...