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MLX90262

Low Pressure Sensor IC

MLX90262
Low Pressure Sensor IC
Features and Benefits
0-50mBar Range Compact Design High Long Term Stability Low Cost
Applications
Consumer Appliances Washing Machines Sports Equipment Pressure Difference and Flow monitoring
Ordering Information
Part No. MLX90262 MLX90262 Temperature Suffix S S
Package BA UD
Functional Diagram
Description
The MLX90262 is a discrete micromachined pressure sensor IC suitable for pressure ranges between 0 to 50mBar. As protection against dirt and moisture, the die is covered with silicone gel. The 90262 is packaged in a plastic package, (BA) or can be ordered as unpackaged die (UD) The principle of the circuit is a piezoresistive bridge which is realized in silicon through a special micromachine process. As pressure is applied to the bridge, a differential voltage change is seen across the VOUT pins, while a bias voltage is applied to the VEXC pins. The MLX90262 is a versatile pressure sensor solution which can be directly interfaced with other Melexis ICs such as the MLX90308, which provides amplification, signal conditioning as well as the bias current to supply the sensor itself.
V EXC+
V OUT+
V EXC-
V OUT-
MLX90262 Low Pressure Sensor IC
Page 1
Temperature Range -20C to 85C Industrial -20C to 85C Industrial Rev 1.0
MLX90262
Low Pressure Sensor IC
MLX90262 Electrical Specifications
Notes:
The offset is defined as the output voltage when no pressure is applied Output deviation with no pressure applied, over the temperature range 0° to 70°C, relative to 25°C Slope of the straight line through the end points The change in sensitivity, over the temperature range 0° to 70°C, relative to 25°C The change in bridge impedance, over the temperature range 0° to 70°C, relative to 25°C Maximum deviation from a straight line through the end points Output deviation, at 25°C, when the pressure is cycled from zero to maximum pressure and back Output deviation, when the temperature is cycled from 0° to 70°C and back. The device is soaked for 20 minutes at each temperature before measurements are taken. 9) After: 100 thermo cycles 0 - 70°C, 1 million pressure cycles 0 - 50 mbar 10) Limited tested 11) The gravitational acceleration is considered positive when the stainless steel lid is facing up 1) 2) 3) 4) 5) 6) 7) 8)
MLX90262 Low Pressure Sensor IC
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Rev 1.0
MLX90262
Low Pressure Sensor IC
Bridge Resistance versus Temperature
Differential Output Voltage versus Pressure
MLX90262
Differential Output Voltage in mV
Bridge Resistance in kOhm
Temperature in o C
Pressure in mBar
Sensitivity versus Temperature
MLX90262
MLX90262 Pin Description
Vexc+ Vexc Pin 1 pin 3
Sensitivity in mV / V / bar
Vout+ Vout+ Pin 2 pin 2
Vexc VexcPin 16 pin 1 VoutVoutPin 15 pin 4
Temperature in o C
MLX90262 Low Pressure Sensor IC
Page 3
Rev 1.0
MLX90262
Low Pressure Sensor IC
"BA" Package Dimensions
Note:
1) All dimensions in inches.
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MLX90262 Low Pressure Sensor IC
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Rev 1.0