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MLX90314 Datasheet(PDF) 1 Page - Melexis Microelectronic Systems |
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MLX90314 Datasheet(HTML) 1 Page - Melexis Microelectronic Systems |
1 / 28 page MLX90314 Programmable Sensor Interface 3901090314 Rev 008 Page 1 Apr/12 Features and Benefits ■ Microprocessor-controlled signal conditioning for bridge-type sensors ■ Suited for low-cost sensors: reduction of non-linearity by programmable coefficients ■ External or internal temperature sensor for compensating temperature errors ■ Versatile output signal ranges: 4, 5, 10, or 11VDC; 4 to 20 mA loop ■ Mass calibration easy with 2400 or 9600 baud UART ■ Power supply from 6 to 35VDC Applications ■ Pressure transducers ■ Accelerometers ■ Temperature sensor assemblies ■ Linear position sensors Ordering Code Product Code Temperature Code Package Code Option Code Packing Form Code MLX90314 L DF BAA-000 TU MLX90314 L DF BAA-000 RE Legend: Temperature Code: L for Temperature Range -40°C to 150°C Package Code: DF for SOIC300Mil Packing Form: RE for Reel, TU for Tube Ordering example: MLX90314LDF-BAA-000-TU Description The MLX90314 is a dedicated microcontroller which performs signal conditioning for sensors wired in bridge or differential configurations. Sensors that can be used include thermistors, strain gauges, load cells, pressure sensors, accelerometers, etc. The signal conditioning includes gain adjustment, offset control, high order temperature and linearity compensation. Compensation values are stored in EEPROM and are re- programmable. Programming is accomplished by using a PC, with an interface circuit (level shifting and glue logic), and provided software. The application circuits can provide an output of an absolute voltage, relative voltage, or current. The output can be range limited with defined outputs when the signal is beyond the programmed limits. Other features include alarm outputs and level steering. The robust electrical design allows the MLX90314 to be used where most signal conditioning and sensor interface circuits cannot be used. Voltage regulation control is provided for absolute voltage and current modes (external FET required). The standard package is a plastic SO16W. The device is static-sensitive and requires ESD precautions. |
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