Pressure Freescale Semiconductor + MPX4080D Rev 4, 1/2009 Integrated Silicon Pressure Sensor On-Chip Signal Conditioned, Temperature Compensated and Calibrated MPX4080D Series 0 to 80 kPa (0 to 11.6 psi) 0.6 to 4.9 V Output The MPX4080D series piezoresistive transducer is a state-of-the-art monolithic silicon pressure sensor designed for a wide range of applications, but particularly those employing a microcontroller or microprocessor with A/D inputs. This patented, single element transducer combines advanced micromachining techniques, thin-film metallization, and bipolar processing to provide an accurate, high level analog output signal that is proportional to the applied pressure. Features • • • • 3.0% Maximum Error over 0° to 85°C Ideally suited for Microprocessor or Microcontroller-Based Systems Temperature Compensated from -40° to 105°C Easy-to-Use, Durable Epoxy Unibody Package ORDERING INFORMATION Device Name MPX4080D Package Options Case No. None Tray 867 • # of Ports Single Dual Gauge Pressure Type Differential • UNIBODY PACKAGE MPX4080D CASE 867-08 © Freescale Semiconductor, Inc., 2005, 2008, 2009. All rights reserved. Absolute Device Marking MPX4080D Pressure Operating Characteristics Table 1. Operating Characteristics (VS = 5.1 Vdc, TA = 25°C unless otherwise noted, P1 > P2. Decoupling circuit shown in Figure 4 required to meet electrical specifications.) Characteristic Symbol Min Typ Max Unit POP 0 — 80 kPa VS 4.85 5.1 5.35 Vdc Io — 7.0 10 mAdc Voff 0.478 0.575 0.672 Vdc Full Scale Output(4)(0 to 85°C) @ VS = 5.1 V VFSO 4.772 4.900 5.020 Vdc Full Scale Span(5)(0 to 85°C) @ VS = 5.1 V VFSS — 4.325 — Vdc Accuracy — — — 3.0 %VFSS Sensitivity V/P — 54 — mV/kPa Pressure Range Supply Voltage (1) (2) Supply Current Minimum Pressure Offset(3)(0 to 85°C) @ VS = 5.1 V 1. 1 kPa (kiloPascal) equals 0.145 psi. 2. Device is ratiometric within this specified excitation range. 3. Offset (Voff) is defined as the output voltage at the minimum rated pressure. 4. Full Scale Output (VFSO) is defined as the output voltage at the maximum or full rated pressure. 5. Full Scale Span (VFSS) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the minimum rated pressure. MPX4080D 2 Sensors Freescale Semiconductor Pressure Maximum Ratings Table 2. Maximum Ratings (1) Rating Symbol Value Unit Pmax 400 kPa Operating Temperature TA -40 to +105 °C Storage Temperature Tstg -40 to +125 °C Maximum Pressure (P1 > P2) 1. Exposure beyond the specified limits may cause permanent damage or degradation to the device. Figure 1 shows a block diagram of the internal circuitry integrated on a pressure sensor chip. VS 3 Sensing Element Thin Film Temperature Compensation and Gain Stage #1 Gain Stage #2 and Ground Reference Shift Circuitry Vout 1 Pins 4, 5, and 6 Are NO CONNECTS GND 2 Figure 1. Fully Integrated Pressure Sensor Schematic MPX4080D Sensors Freescale Semiconductor 3 Pressure On-Chip Temperature Compensation and Calibration Figure 2 shows the sensor output signal relative to differential pressure input. Typical, minimum, and maximum output curves are shown for operation over a temperature range of 0° to 85°C using the decoupling circuit shown in Figure 4. The output will saturate outside of the specified pressure range. Figure 3 illustrates the differential sensing chip in the basic chip carrier (Case 867). A fluorosilicone gel isolates the die surface and wire bonds from the environment, while allowing the pressure signal to be transmitted to the sensor diaphragm. Output (V) 3.5 TYP 3 2.5 MAX 2 MIN 1.5 1 0.5 kPa PSI 0 0 10 20 30 40 50 60 70 80 Output Range (TYP) VS = 5.1 Vdc TA = 25°C MPX4080 4 Span Range (TYP) 5 4.5 The MPX4080D pressure sensor operating characteristics, internal reliability, and qualification tests are based on use of dry air as the pressure media. Media, other than dry air, may have adverse effects on sensor performance and long-term reliability. Contact the factory for information regarding media compatibility in your application. Figure 4 shows the recommended decoupling circuit for interfacing the output of the integrated sensor to the A/D input of a microprocessor or microcontroller. Proper decoupling of the power supply is recommended. Offset (TYP) Pressure (kPa) Figure 2. Output versus Pressure Differential Fluoro Silicone Gel Die Coat Die Stainless Steel Metal Cover Epoxy Plastic Case Wire Bond Lead Frame Differential/Gauge Element Die Bond Figure 3. Cross-Sectional Diagrams (not to scale) +5.0 V Vout OUTPUT Vs IPS 1.0 µF 0.01 µF GND 470 pF Figure 4. Recommended Power Supply Decoupling and Output Filter (For additional output filtering information, refer to Application Note AN1646.) MPX4080D 4 Sensors Freescale Semiconductor Pressure Transfer Function (MPX4080D) Nominal Transfer Value: Vout = VS (P x 0.01059 + 0.11280) ± (Pressure Error x Temp. Mult. x 0.01059 x VS) VS = 5.1 V ± 0.25 VDC Temperature Error Multiplier MPX4080D Temp. 4.0 Multiplier - 40 0 to 85 +105 3.0 3 1 2 2.0 1.0 0.0 -40 -20 0 20 40 60 80 100 120 130 140 Temperature in °C NOTE: The Temperature Multiplier is a linear response from 0° to -40°C and from 85° to 105°C. Pressure Error Band Error Limits for Pressure 3.0 Error (kPa) 2.0 1.0 0.0 0 20 40 60 80 100 Pressure in kPa 120 -1.0 -2.0 -3.0 MPX4080D Pressure Error (max) 0 to 6 kPa 0 to 60 kPa 60 to 80 kPa ± 1.8 kPa ± 1.5 kPa ± 2.3 kPa PRESSURE (P1)/VACUUM (P2) SIDE IDENTIFICATION TABLE The two sides of the pressure sensor are designated as the Pressure (P1) side and the Vacuum (P2) side. The Pressure (P1) side is the side containing fluorosilicone gel which protects the die from harsh media. The pressure sensor is designed to operate with positive differential pressure applied, P1 > P2. The Pressure (P1) side is identified by the stainless steel cap. MPX4080D Sensors Freescale Semiconductor 5 Pressure PACKAGE DIMENSIONS C R POSITIVE PRESSURE (P1) M B -AN PIN 1 SEATING PLANE 1 2 3 4 5 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION -A- IS INCLUSIVE OF THE MOLD STOP RING. MOLD STOP RING NOT TO EXCEED 16.00 (0.630). DIM A B C D F G J L M N R S L 6 -TG J S F D 6 PL 0.136 (0.005) STYLE 1: PIN 1. 2. 3. 4. 5. 6. VOUT GROUND VCC V1 V2 VEX STYLE 2: PIN 1. 2. 3. 4. 5. 6. OPEN GROUND -VOUT VSUPPLY +VOUT OPEN M T A M STYLE 3: PIN 1. 2. 3. 4. 5. 6. INCHES MILLIMETERS MAX MIN MAX MIN 16.00 0.595 0.630 15.11 13.56 0.514 0.534 13.06 5.59 0.200 0.220 5.08 0.84 0.027 0.033 0.68 1.63 0.048 0.064 1.22 0.100 BSC 2.54 BSC 0.40 0.014 0.016 0.36 18.42 0.695 0.725 17.65 30˚ NOM 30˚ NOM 12.57 0.475 0.495 12.07 11.43 0.430 0.450 10.92 0.090 0.105 2.29 2.66 OPEN GROUND +VOUT +VSUPPLY -VOUT OPEN CASE 867-08 ISSUE N BASIC ELEMENT MPX4080D 6 Sensors Freescale Semiconductor How to Reach Us: Home Page: www.freescale.com Web Support: http://www.freescale.com/support USA/Europe or Locations Not Listed: Freescale Semiconductor, Inc. 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