Search Check Stock PRODUCTS APPLICATIONS Contact Sales DESIGN CENTER English SAMPLES ABOUT ALLEGRO Home Products Magnetic Linear and Angular Position Sensor ICs Linear Position Sensor ICs A1308-9 DATASHEETS A1308 and A1309: Linear Hall-Effect Sensor ICs with Analog Output Available in Miniature, Low-Profile SurfaceMount and SIP Packages A1308-9 Datasheet SAMPLE & BUY 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. Arrow Electronics (Distributor, Allegro & Sanken Semiconductors) 25 Hub Drive Melville, NY 11747 Phone: 1-800-777-2776 for local distributor Web: www.arrow.com If this is not your local representative, find your local sales rep here. 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 (QVO: output in the absence of a magnetic field) for a given application or circuit. This A1308 and A1309 optimized performance is sustained across the full operating temperature range by programming the temperature coefficient for both sensitivity and QVO at Allegro end-of-line test. These ratiometric Hall-effect sensor ICs provide a voltage output that is proportional to the applied magnetic field. The quiescent voltage output is adjusted around 50% of the supply voltage. The features of these linear devices make them ideal for use in automotive and industrial applications requiring high accuracy, and they operate across an extended temperature range, -40C to 150C. Each BiCMOS monolithic circuit integrates a Hall element, temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, a clamped low-impedance output stage, and a proprietary dynamic offset cancellation technique. The A1308 and A1309 sensor ICs are offered in two package styles. The LH is a SOT-23W style, miniature, low-profile package for surface-mount applications. The UA is a 3-pin, ultramini, single inline package (SIP) for through-hole mounting. Both packages are lead (Pb) free, with 100% matte-tin leadframe plating. A1308-9 Product Image 5 V supply operation QVO temperature coefficient programmed at AllegroTM 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 Click the image to view larger Precise recoverability after temperature cycling 1 Output voltage clamps provide short-circuit diagnostic capabilities 2 3 Undervoltage lockout (UVLO) Wide ambient temperature range: -40C to 150C Immune to mechanical stress Enhanced EMC performance for stringent automotive applications Allegro Sensor Bias LDO Part Number Specifications and Availability Part Number Package Type Temperature RoHS Compliant Part Composition / RoHS Data Samples Check Distributor Stock A1308KUATN-1-T n/a -20C to 85C Yes View Data Contact your local sales rep Check Stock A1308KUATN-2-T n/a -20C to 85C Yes View Data Contact your local sales rep Check Stock A1308KUATN-3-T n/a -20C to 85C Yes View Data Contact your local sales rep Check Stock A1308KUATN-5-T n/a -20C to 85C Yes View Data Contact your local sales rep Check Stock A1308LLHLT-05-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLT-1-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLT-2-T 3-lead SOT -40C to 150C Yes View Data Contact your local sales rep Check Stock Comments Part Number Specifications and Availability Part Number Package Type Temperature RoHS Compliant Part Composition / RoHS Data Samples Check Distributor Stock A1308LLHLT-3-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLT-5-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLX-05-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLX-1-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLX-2-T 3-lead SOT -40C to 150C Yes View Data Contact your local sales rep Check Stock A1308LLHLX-3-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1308LLHLX-5-T 3-lead SOT -40C to 150C -- View Data Contact your local sales rep Check Stock A1309LLHLT-9-T 3-lead SOT -40C to 150C Yes View Data Contact your local sales rep Check Stock A1309LLHLT-RP9-T 3-lead SOT -40C to 150C Yes View Data Contact your local sales rep Check Stock A1309LLHLX-9-T 3-lead SOT -40C to 150C Yes View Data Contact your local sales rep Check Stock A1309LLHLX-RP9-T 3-lead SOT -40C to 150C Yes View Data Contact your local sales rep Check Stock Comments Allegro's products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro's product can reasonably be expected to cause bodily harm. 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