A1324LLHLT-T Sensors, Transducers

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1. 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 applications requiring high accuracy, and operate through an extended temperature range,  –40°C to 150°C. 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. These devices are available in a 3-pin ultra-mini SIP package (UA), and a 3-pin surface mount SOT-23 style package (LH). Both are lead (Pb) free, with 100% matte tin leadframe plating

2. FEATURES

    1. Temperature-stable quiescent output voltage and sensitivity

    2. Output voltage proportional to magnetic flux density

    3. Low-noise output increases accuracy

    4. Precise recoverability after temperature cycling

    5. Ratiometric rail-to-rail output

    6. Wide ambient temperature range: –40°C to 150°C

    7. Immune to mechanical stress

    8. Solid-state reliability

    9. Enhanced EMC performance for stringent automotive applications

3. Pin configuration

4. Pin function

5. Product Size