Preliminary Datasheet
LINEAR HALL-EFFECT IC
General Description
The AH49E is a small, versatile linear Hall-effect
device that is operated by the magnetic field from a
permanent magnet or an electromagnet. The output
voltage is set by the supply voltage and varies in pro-
portion 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 precision resistors to provide increased
temperature stability and accuracy. The operating tem-
perature range of these linear Hall sensors is -40
o
C
to
85
o
C
, appropriate for commercial, consumer and
industrial applications.
The AH49E is available in standard TO-92S package.
AH49E
Features
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Miniature Construction
Power Consumption of 3.5mA at V
CC
=5V for
Energy Efficiency
Single Current Sourcing Output
Linear Output for Circuit Design Flexibility
Low Noise Output Virtually Eliminates the Need
for Filtering
A Stable and Accurate Output
Temperature Range of -40
o
C
to 85
o
C
Responds to Either Positive or Negative Gauss
Applications
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Current Sensing
Motor Control
Position Sensing
Magnetic Code Reading
Ferrous Metal Detector
Vibration Sensing
Liquid Level Sensing
Weight Sensing
TO-92S
Figure 1. Package Type of AH49E
Jun. 2008 Rev. 1. 1
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
