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MPXV7002 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc

Part No. MPXV7002
Description  Integrated Silicon Pressure Sensor On-Chip Signal Conditioned, Temperature Compensated and Calibrated
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPXV7002 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc

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MPXV7002
Sensors
Freescale Semiconductor
3
ON-CHIP TEMPERATURE COMPENSATION, CALIBRATION AND SIGNAL CONDITIONING
The performance over temperature is achieved by
integrating the shear-stress strain gauge, temperature
compensation, calibration and signal conditioning circuitry
onto a single monolithic chip.
Figure 2 illustrates the Differential or Gauge configuration
in the basic chip carrier (Case 482). A gel die coat isolates the
die surface and wire bonds from the environment, while
allowing the pressure signal to be transmitted to the sensor
diaphragm.
The MPXV7002 series pressure sensor operating
characteristics, and 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 3 shows the recommended decoupling circuit for
interfacing the integrated sensor to the A/D input of a
microprocessor or microcontroller. Proper decoupling of the
power supply is recommended.
Figure 4 shows the sensor output signal relative to
pressure input. Typical, minimum, and maximum output
curves are shown for operation over a temperature range of
10
° to 60°C using the decoupling circuit shown in Figure 3.
The output will saturate outside of the specified pressure
range.
Figure 2. Cross-Sectional Diagram SOP
(not to scale)
Figure 3. Recommended Power Supply Decoupling
and Output Filtering
(For additional output filtering, please refer to
Application Note AN1646.)
Figure 4. Output versus Pressure Differential
Fluoro Silicone
Gel Die Coat
Wire Bond
Die
P1
Stainless
Steel Cap
Thermoplastic
Case
Die Bond
Differential Sensing
Element
P2
+5 V
1.0
µF
0.01
µF
470 pF
GND
Vs
Vout
IPS
OUTPUT
Lead
Frame
Differential Pressure (kPa)
5.0
4.0
3.0
2.0
1.0
0
02
TYPICAL
MIN
-2
-1
1
Transfer Function:
Vout = VS × (0.2 × P(kPa)+0.5) ± 6.25% VFSS
VS = 5.0 Vdc
TA = 10 to 60°C
MAX


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