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Micro Power 3 V Linear Hall Effect Sensors with Tri-State Output and User-Selectable Sleep Mode

Description

The A139x family of linear Hall effect sensor integrated circuits (ICs) provide a voltage output that is directly proportional to an applied magnetic field. Before amplification, the sensitivity of typical Hall effect ICs (measured in mV/G) is directly proportional to the current flowing through the Hall effect transducer element inside the ICs. In many applications, it is difficult to achieve sufficient sensitivity levels with a Hall effect sensor IC without consuming more than 3 mA of current.

Features and Benefits

? High-impedance output during sleep mode

? Compatible with 2.5 to 3.5 V power supplies

? 10 mW power consumption in the active mode

? Miniature MLP/DFN package

? Ratiometric output scales with the ratiometric supply reference voltage (VREF pin)

? Temperature-stable quiescent output voltage and sensitivity

? Wide ambient temperature range: –20°C to 85°C

? ESD protection greater than 3 kV

? Solid-state reliability

? Preset sensitivity and offset at final test