Trade Shows
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| 26.02. - 28.02.2019, Nuremberg |
Pressure Sensor
Melexis’ pressure sensors consist of a piezoresistive Wheatstone bridge that sits on the edge of a silicon membrane and transforms the stress induced by pressure on the membrane into an electrical signal. They can be used in conjunction with amplifier circuits to provide pressure indication. They may also be incorporated into a system in package (SIP), which integrates all the necessary circuitry, as in the Tire Pressure Monitoring sensor. The tire pressure monitor actually combines three sensor technologies in a single package: a pressure sensor; temperature sensor and a motion sensor.
Melexis manufactures highly sophisticate, fully integrated relative pressure sensors. These products incorporate the MEMs pressure sensor with signal processing and programmable gain and offset correction to enable a robust automotive grade pressure sensor. One use is in automotive vacuum boost systems to measure the air pressure in the vacuum chamber situated adjacent to a master brake cylinder. Depending on pressure variations during braking, a pump is activated and generates additional vacuum to increase braking force. Relative pressure sensors also have application in occupancy detection systems, where they are integrated into a car seat to turn the airbag system on or off; as well as in fuel vapour sensing, for emissions control.
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Product |
Measuring |
Range |
Benefits |
Package |
Datasheet |
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Relative pressure |
0.5 to 1 bar |
High accuracy relative pressure sensor (+/-1.5%FSO), Factory calibrated and/or fully programmable through the connector for customized calibration curves, Fully integrated IC: MEMS, analog front end circuitry, 16 bit microcontroller, analog back end circuitry, voltage regulators |
Special SOIC 16WB |
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Programmable Sensor Interface for Bridge-Type |
Versatile output signal ranges: 4, 5, 10 or 11V DC and 4mA to 20mA Loop |
Suited for low-cost sensors , Microprocessor-controlled signal conditioning, Overall gain / Voltage mode: max. 600V/V |
SOIC16WB |
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High Gain Programmable Sensor Interface for |
Versatile output signal ranges: |
Suited for low-cost sensors , Microprocessor-controlled signal conditioning, Overall gain / Voltage mode: max 2100V/V. |
SOIC16WB |
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Automotive Sensor Interface for all types of Resistive |
Ratio-metric output: 0 to 5V |
Suited cost optimized sensors: gain and offset correction by programmable coefficients, |
SSOP1 |
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Sensor Interface with Signal Conditioning and EEPROM |
4mA to 20mA Loop |
Programmable Sensor Interface IC with 4 to 20mA current loop output. External or internal temperature sensor for compensating temperature errors, Power supply from 6V to 35V |
SOIC16WB |
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Analog Sensor Interface IC |
Ratio-metric output: 0 to 5V |
Versatile, cost optimized, fully integrated and programmable sensor interface IC with analog output for single bridge inputs, Internal temperature sensor provided, Power supply from 4.5V to 5.5V |
SSOP14 |
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