49E Hall Effect Linear Position Sensor

Description

1. General Description
The 49E Series Economical Linear Hall-effect sensors are small, versatile linear Hall-effect devices
that are operated by the magnetic field from a permanent magnet or an electromagnet. The linear
sourcing output voltage is set by the supply voltage and varies in proportion to the strength of the
magnetic field. The integrated circuitry features low noise output, which makes it unnecessary to use
external filtering. It also includes thin film resistors to provide increased temperature stability and
accuracy. These linear Hall sensors have an operating temperature range of -40 °C to 100 °C, appropriate
for commercial, consumer, and industrial environments.
2. Feature
„ Good linearity and high sensitivity（1.4 ~3.0mV/GS optional）
„ Miniature construction
„ Power consumption of 4 mA at 5 Vdc for energy efficiency
„ Low-voltage operation down to 2.3 Vdc
„ Single current sourcing output
„ Linear output for circuit design flexibility
„ Low noise output virtually eliminates the need for filtering
„ Temperature range of -40 °C to 100 °C [-40 °F to 212 °F]
„ Responds to either positive or negative gaussl
3. Application Range
„ Current sensing
„ Motor control
„ Position sensing
„ Magnetic code reading
„ Rotary encoder
„ Ferrous metal detector