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