MLX90242
Linear Hall Effect Sensor
3901090242 Page 1 of 7 Data Sheet
Rev. 024 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. Sensitivity Voq TC Temp. Range Package Nb pins
MLX90242LUA-CC03 40 mV/mT (± 500G) 2.50 V 700 ppm/°C -40C to 150C UA 3
MLX90242LVA-CC03 40 mV/mT (± 500G) 2.50 V 700 ppm/°C -40C to 150C VA 4
MLX90242ESO-BC03 15 mV/mT (± 1300G) 2.50 V - -40C to 85C SO 3
MLX90242ESO-CC03 40 mV/mT (± 500G) 2.50 V - -40C to 85C SO 3
1. Functional Diagram
Chopper
V
DD
Output
Package Pin1 Pin2
Pin 3
Pin4 Slope
SOT23 VDD Out VSS Positive
UA VDD VSS Out Negative
VA VDD n/c VSS 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.