MLX90242
Linear Hall Effect Sensor
3901090242
Rev. 024
Page 1 of 7
Data Sheet
Mar/04
Features and Benefits
Small Plastic Package (SOT-23, 4-SIP-VA, TO-92)
Quad Switched Hall Plate / Chopper Stabilized Amplifier
Ratiometric Output for A/D Interface
Low Quiescent Voltage Thermal Drift
Applications
Linear Position Sensing
Rotary Position Sensing
Current Sensing
Ordering Information
Part No.
MLX90242LUA-CC03
MLX90242LVA-CC03
MLX90242ESO-BC03 15 mV/mT (± 1300G) 2.50 V
MLX90242ESO-CC03
40 mV/mT (± 500G)
Sensitivity
Voq
TC
Temp. Range Package Nb pins
40 mV/mT (± 500G)
40 mV/mT (± 500G)
2.50 V
2.50 V
700 ppm/°C -40C to 150C
700 ppm/°C -40C to 150C
-
-
UA
VA
SO
SO
3
4
3
3
-40C to 85C
-40C to 85C
2.50 V
1. Functional Diagram
Chopper
V
DD
Output
Package
Pin1 Pin2 Pin 3 Pin4
Slope
SOT23
V
DD
Out
V
SS
Positive
UA
V
DD
V
SS
Out
Negative
VA
V
DD
n/c
V
SS
Out
Positive
2. Description
The MLX90242 is a CMOS Linear Hall Effect
sensor IC. It possesses active error correction
circuitry which virtually eliminates the offset
errors normally associated with analog Hall
Effect devices.
The ratiometric output voltage is proportional to
the supply voltage. When using the supply
voltage as a reference for an A/D converter,
fluctuations of +10% in supply voltage will not
affect accuracy. For a positive slope, the voltage
at the output will increase as a South magnetic
field is applied to the branded face of the
MLX90242. Conversely, the voltage output will
decrease in the presence of a North magnetic
field. For a negative slope, the voltage at the
output will increase as a North magnetic field is
applied to the branded face of the MLX90242.
Conversely, the voltage output will decrease in
the presence of a South magnetic field.