Data Sheet

Freescale Semiconductor
Data Sheet: Technical Data
Document Number: MPXV7002
Rev 3, 01/2015
MPXV7002 Integrated Silicon
Pressure Sensor On-Chip Signal
Conditioned, Temperature
Compensated and Calibrated
MPXV7002
-2 to +2 kPa (-0.3 to +0.3 psi)
0.5 to 4.5 V Output
The MPXV7002 series piezoresistive transducers are state-of-the-art monolithic
silicon pressure sensors designed for a wide range of applications, but
particularly those employing a microcontroller or microprocessor with A/D
inputs. This transducer combines advanced micromachining techniques, thinfilm metallization, and bipolar processing to provide an accurate, high level
analog output signal that is proportional to the applied pressure.
MPXV7002GC6U/C6T1
CASE 482A
Features
•
2.5% Typical Error over +10C to +60C with Auto Zero
•
6.25% Maximum Error over +10C to +60C without Auto Zero
•
Ideally Suited for Microprocessor or Microcontroller-Based Systems
•
Thermoplastic (PPS) Surface Mount Package
•
Temperature Compensated over +10 to +60C
•
Patented Silicon Shear Stress Strain Gauge
•
Available in Differential and Gauge Configurations
MPXV7002GP
CASE 1369
MPXV7002DP
CASE 1351
Small Outline Package
Top view
N/C
5
4
VOUT
N/C
6
3
GND
N/C
7
2
VS
N/C
8
1
N/C
Pinout
(Style 2, case number 98ASA99255D)
ORDERING INFORMATION
Package
Case
Device Name
No.
Options
Small Outline Package (MPXV7002 Series)
MPXV7002GC6U
482A
Rails
MPXV7002GC6T1
482A
Tape & Reel
MPXV7002GP
Trays
1369
MPXV7002DP
Trays
1351
None
# of Ports
Single
Dual
•
•
•
© 2005, 2009, 2015 Freescale Semiconductor, Inc. All rights reserved.
Gauge
Pressure Type
Differential Absolute
MPXV7002G
•
•
•
•
Device
Marking
MPXV7002G
MPXV7002G
•
MPXV7002DP
1
Operating Characteristics
Table 1. Operating Characteristics (VS = 5.0 Vdc, TA = 25°C unless otherwise noted. Decoupling circuit shown in Figure 3
required to meet specification.)
Characteristic
Pressure Range
Supply Voltage
(1)
(2)
Supply Current
Symbol
Min
Typ
Max
Unit
POP
–2.0
—
2.0
kPa
VS
4.75
5.0
5.25
Vdc
Io
—
—
10
mAdc
Pressure Offset(3)
@ VS = 5.0 Volts
(10 to 60C)
Voff
2.25
2.5
2.75
Vdc
Full Scale Output(4)
@ VS = 5.0 Volts
(10 to 60C)
VFSO
4.25
4.5
4.75
Vdc
Full Scale Span(5)
@ VS = 5.0 Volts
(10 to 60C)
VFSS
3.5
4.0
4.5 V
Vdc
Accuracy(6)
(10 to 60C)
—
—
2.5(7)
6.25
%VFSS
V/P
—
1.0
—-
V/kPa
Response Time(8)
tR
—
1.0
—-
ms
Output Source Current at Full Scale Output
IO+
—
0.1
—-
mAdc
—
—
20
—-
ms
Sensitivity
Warm-Up Time
(9)
1. 1.0 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.
6.Accuracy (error budget) consists of the following:
Linearity:
Temperature Hysteresis:
Pressure Hysteresis:
TcSpan:
TcOffset:
Variation from Nominal:
Output deviation from a straight line relationship with pressure over the specified pressure range.
Output deviation at any temperature within the operating temperature range, after the temperature is cycled to
and from the minimum or maximum operating temperature points, with zero differential pressure applied.
Output deviation at any pressure within the specified range, when this pressure is cycled to and from the
minimum or maximum rated pressure, at 25C.
Output deviation over the temperature range of 10 to 60C, relative to 25C.
Output deviation with minimum rated pressure applied, over the temperature range of 10 to 60C, relative to
25C.
The variation from nominal values, for Offset or Full Scale Span, as a percent of VFSS, at 25C.
7.Auto Zero at Factory Installation: Due to the sensitivity of the MPXV7002 Series, external mechanical stresses and mounting position can
affect the zero pressure output reading. Auto zero is defined as storing the zero pressure output reading and subtracting this from the
device's output during normal operations. Reference AN1636 for specific information. The specified accuracy assumes a maximum
temperature change of ± 5C between auto zero and measurement.
8.Response Time is defined as the time for the incremental change in the output to go from 10% to 90% of its final value when subjected to a
specified step change in pressure.
9.Warm-up Time is defined as the time required for the product to meet the specified output voltage after the Pressure has been stabilized.
MPXV7002
2
Sensors
Freescale Semiconductor, Inc.
2
Maximum Ratings
Table 2. Maximum Ratings(1)
Rating
Symbol
Value
Unit
Maximum Pressure (P1 > P2)
Pmax
75
kPa
Storage Temperature
Tstg
–30 to +100
C
Operating Temperature
TA
10 to 60
C
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
2
Thin Film
Temperature
Compensation
and
Gain Stage #1
Sensing
Element
GND
Gain Stage #2
and
Ground
Reference
Shift Circuitry
Vout
4
Pins 1, 5, 6, 7, and 8 are NO CONNECTS
for Small Outline Package Device
3
Figure 1. Integrated Pressure Sensor Schematic
MPXV7002
Sensors
Freescale Semiconductor, Inc.
3
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.
Fluoro Silicone
Gel Die Coat
Die
Stainless
Steel Cap
P1
Thermoplastic
Case
Wire Bond
Lead
Frame
P2
Die Bond
Differential Sensing
Element
Figure 2. Cross-Sectional Diagram SOP
(not to scale)
+5 V
Vout
OUTPUT
Vs
IPS
1.0 F
0.01 F
GND
470 pF
Figure 3. Recommended Power Supply Decoupling and Output Filtering
(For additional output filtering, please refer to Application Note AN1646.)
MPXV7002
4
Sensors
Freescale Semiconductor, Inc.
5.0
Transfer Function:
Vout = VS  (0.2 P(kPa)+0.5) ± 6.25% VFSS
VS = 5.0 Vdc
TA = 10 to 60°C
Output Voltage (V)
4.0
3.0
TYPICAL
MAX
2.0
MIN
1.0
0
-2
-1
0
2
1
Differential Pressure (kPa)
Figure 4. Output versus Pressure Differential
4
Pressure (P1)/Vacuum (P2) Side Identification Table
Freescale designates the two sides of the pressure sensor as the Pressure (P1) side and the Vacuum (P2) side. The Pressure
(P1) side is the side containing a gel die coat which protects the die from harsh media.
The Pressure (P1) side may be identified by using the following table:
Part Number
Pressure (P1)
Side Identifier
Case Type
MPXV7002GC6U/GC6T1
482A-01
Side with Port Attached
MPXV7002GP
1369-01
Side with Port Attached
MPXV7002DP
1351-01
Side with Part Marking
5
Minimum Recommended Footprint for Surface Mounted Applications
Surface mount board layout is a critical portion of the total design. The footprint for the surface mount packages must be the
correct size to ensure proper solder connection interface between the board and the package. With the correct footprint, the
packages will self align when subjected to a solder reflow process. It is always recommended to design boards with a solder mask
layer to avoid bridging and shorting between solder pads.
0.100 TYP 8X
2.54
0.660
16.76
0.060 TYP 8X
1.52
0.300
7.62
0.100 TYP 8X
2.54
inch
mm
SCALE 2:1
Figure 5. Small Outline Package Footprint
MPXV7002
Sensors
Freescale Semiconductor, Inc.
5
6
Package Dimensions
-A-
D
4
0.25 (0.010)
5
N
8 PL
M
T B
S
A
S
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006).
5. ALL VERTICAL SURFACES 5˚ TYPICAL DRAFT.
-BG
8
1
S
W
V
C
H
J
-TK
M
PIN 1 IDENTIFIER
DIM
A
B
C
D
G
H
J
K
M
N
S
V
W
INCHES
MIN
MAX
0.415 0.425
0.415 0.425
0.500 0.520
0.038 0.042
0.100 BSC
0.002 0.010
0.009 0.011
0.061 0.071
0˚
7˚
0.444 0.448
0.709 0.725
0.245 0.255
0.115 0.125
MILLIMETERS
MIN
MAX
10.54
10.79
10.54
10.79
12.70
13.21
0.96
1.07
2.54 BSC
0.05
0.25
0.23
0.28
1.55
1.80
0˚
7˚
11.28
11.38
18.01
18.41
6.22
6.48
2.92
3.17
SEATING
PLANE
CASE 482A-01
ISSUE A
SMALL OUTLINE PACKAGE
MPXV7002
6
Sensors
Freescale Semiconductor, Inc.
CASE 1351-01
ISSUE A
SMALL OUTLINE PACKAGE
MPXV7002
Sensors
Freescale Semiconductor, Inc.
7
MPXV7002
8
Sensors
Freescale Semiconductor, Inc.
CASE 1369-01
ISSUE B
SMALL OUTLINE PACKAGE
MPXV7002
Sensors
Freescale Semiconductor, Inc.
9
CASE 1369-01
ISSUE B
SMALL OUTLINE PACKAGE
MPXV7002
10
Sensors
Freescale Semiconductor, Inc.
7
Revision History
Table 1. Revision History
Revision
number
Revision
date
3
01/2015
Description of changes
• Updated data sheet format.
• Added Pinout.
• Updated package outline for 98ASA99303D.
MPXV7002
Sensors
Freescale Semiconductor, Inc.
11
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MPXV7002
Rev 3
01/2015
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