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| MLX90240 Pressure Sensor IC Features and Benefits 0-350mBar Range Compact Design High Long Term Stability Low Cost Applications Medical Instrumentation (Blood Pressure) Consumer Appliances Sports Equipment Pressure Difference and Flow monitoring Ordering Information Part No. MLX90240 MLX90240 Temperature Suffix S S Package CA UD Temperature Range -20C to 85C Industrial -20C to 85C Industrial Functional Diagram Description The MLX90240 is a discrete micromachined pressure sensor IC suitable for pressure ranges between 0 to 350mBar. The pressure medium must be dry and non-corrosive, such as air. The 90240 is packaged in a plastic/ceramic package, (CA) or can be ordered as unpackaged die (UD) The principal of the circuit is a piezoresistive bridge which 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 MLX90240 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. 1 V EXC+ 1 V OUT+ 1 V EXC- 1 V OUT- MLX902xx Name of Sensor MLX90240 Pressure Sensor IC Rev Y.X 1 Page 22/Aug/98 Page 1 Rev 1.0 25/April/00 MLX90240 Pressure Sensor IC MLX90240 Electrical Specifications DC Operating Parameters TA = 25C, VDD = 5V, Pressure = 350mBar full scale. Parameter Min Excitation voltage Offset TC of the Offset Sensitivity TC of the Sensitivity (1) Bridge impedance TC of the Bridge (1) Non linearity (3) Hysteresis Offset Long term stability (2) Sensitivity Long term stability (2) Burst pressure Operating Temp Storage Temp 5x -20 -40 85 125 0 -25 -15 43 -0.17 12 0.057 Typ 5 0 -21 58 -0.21 14 0.063 +/- 0.15 Max 12 +25 -25 71 -0.26 16 0.066 +/- 0.30 0.1 0.5 0.3 Units V mV V/C mV/V/bar %/C kOhm %/C %FS % FS %FS % FS pressure C C Notes: 1) 2) 3) 4) Between 0 and 70C After: 100 thermos cycles 0 - 70C 1 mil pressure cycles 0 - 350 mbar Typical 0.5% FS for 0-500 mbar range MLX90240 Pressure Sensor IC Page 2 Rev 1.0 25/April/00 MLX90240 Pressure Sensor IC Bridge Resistance versus Temperature 14.8 Bridge Resistance versus Temperature 14.8 MLX90240 MLX90240 14.6 14.6 Bridge Resistance in kOhm 14.4 Bridge Resistance in kOhm -20 0 20 40 60 80 100 120 14.4 14.2 14.2 14 14 13.8 13.8 -20 0 20 40 60 80 100 120 Temperature in o C Temperature in o C Sensitivity versus Temperature 60.5 MLX90240 Pin Description MLX90240 Vexc+ pin 1 60 Sensitivity in mV/V/bar 56.6 Vout+ pin 2 53.3 Vexcpin 16 Voutpin 15 50 46.7 -20 0 20 40 60 80 100 120 Temperature in o C MLX902xx Name of Sensor MLX90240 Pressure Sensor IC Rev Y.X 3 Page 22/Aug/98 Page 3 Rev 1.0 25/April/00 MLX90240 Pressure Sensor IC "CA" Package Dimensions Top view Bottom view 0.170 diam 0.030 0.300 0.030 2 1 16 15 8 9 diam 0.028 0.300 0.085 0.060 Cross section 0.340 Notes: 1) 2) All dimensions in inches. Maximum temperature during mounting is 220C for 1 minute; solder composition is 63% tin and 37% lead. For the latest version of this document, Go to our website at: 0.025 0.122 France Melexis France Tour Arago, 5 rue Bellini, 92806 Puteaux-La-Defense, France. Phone: +33 1 47 78 11 34 Fax: +33 1 47 78 06 35 E-mail: sales_france@melexis.com www.melexis.com Or for additional information contact Melexis Direct: USA Melexis Inc. 41 Locke Road, Concord, NH 03301 Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com Fax: +1 603 223 9614 Italy Dimacred IRL Via Papa Giovanni XXIII no. 25, 20046 Biassono, Italy Phone: +39 039 249 4856 Fax: +39 039 491773 E-mail: sales_italy@melexis.com Japan United Kingdom Silicon Concepts PCB Lynchborough Road, Hampshire GU30 7SB, United Kingdom Phone: +44 1428 751 617 Fax: +44 1428 751 603 E-mail: sales_uk@melexis.com Satori Electric Co., LTD 1-14-10 Shiba, Minato-Ku, Tokyo, Japan Phone: +81 3 3452 7171 Fax: +81 3 3769 2197 E-mail: sales_japan@melexis.com Germany Am Seestern 8, 40547 Dusseldorf, Germany Phone: +49 211 5360212 Fax: +49 211 5360250 E-mail: sales_de@melexis.com Taiwan Beechwood Int'l Taiwan Co. Room 8, 17F, No. 189, Taipei, Taiwan Phone: +886 2 2739 3322 E-mail: sales_taiwan@melexis.com Fax: +886 2 2739 3090 MLX90240 Pressure Sensor IC Page 4 0.075 Rev 1.0 25/April/00 0.050 diam 0.08 0.250 sq |
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