Data Sheet

Pressure
MPXV7007
Rev 3, 10/2012
Freescale Semiconductor
Data Sheet: Technical Data
Integrated Silicon Pressure Sensor
On-Chip Signal Conditioned,
Temperature Compensated and
Calibrated
MPXV7007
Series
-7 to 7 kPa (-1 to 1 psi)
0.5 to 4.5 V Output
The MPXV7007 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.
Application Examples
•
•
•
•
Features
•
•
•
•
•
•
Hospital Beds
HVAC
Respiratory Systems
Process Control
5.0% Maximum Error Over 0 to 85C
Ideally Suited for Microprocessor or Microcontroller-Based Systems
Temperature Compensated Over –40 to +125C
Thermoplastic (PPS) Surface Mount Package
Patented Silicon Shear Stress Strain Gauge
Available in Differential and Gauge Configurations
ORDERING INFORMATION
Device Name
Small Outline Package
MPXV7007DP
Package
Options
Case
No.
Trays
1351
MPXV7007DPT1
Tape & Reel
1351
MPXV7007GC6U
Rails
482A
MPXV7007GC6T1
Tape & Reel
482A
Trays
1369
MPXV7007GP
# of Ports
Single
None
Dual
Pressure Type
Differential Absolute
Gauge
•
•
MPXV7007DP
•
•
•
•
•
Device
Marking
MPXV7007DP
MPXV7007G
•
•
•
MPXV7007G
MPXV7007GP
SMALL OUTLINE PACKAGE
MPXV7007GP
CASE 1369-01
MPXV7007GC6U/C6T1
CASE 482A-01
MPXV7007DP/DPT1
CASE 1351-01
Table 1. Pin Numbers(1)
1
2
3
4
5
6
7
8
N/C
Vs
Gnd
Vout
N/C
N/C
N/C
N/C
1.Pins 1, 5, 6, 7 and 8 are internal device connections. Do not connect to external circuitry or ground. Pin 1 is noted by the notch in the lead.
© 2005, 2009, 2011, 2012 Freescale Semiconductor, Inc. All rights reserved.
Pressure
Operating Characteristics
Table 2. Operating Characteristics (VS = 5.0 Vdc, TA = 25°C unless otherwise noted. Decoupling circuit shown in Figure 3 required to meet specification.)
Characteristic
Symbol
Min
Typ
Max
Unit
Pressure Range(1)
POP
-7
—
7
kPa
Supply Voltage(2)
VS
4.75
5.0
5.25
Vdc
Supply Current
Io
—
7.0
10
mAdc
Minimum Pressure Offset(3)
@ VS = 5.0 Volts
(0 to 85C)
Voff
0.33
0.5
0.67
Vdc
Full Scale Output(4)
@ VS = 5.0 Volts
(0 to 85C)
VFSO
4.3
4.5
4.7
Vdc
Full Scale Span(5)
@ VS = 5.0 Volts
(0 to 85C)
VFSS
—
4.0
—
Vdc
Accuracy(6)
(0 to 85C)
—
—
—
5.0
%VFSS
V/P
—
286
—-
mV/kPa
Response Time(7)
tR
—
1.0
—-
ms
Output Source Current at Full Scale Output
IO+
—
0.1
—-
mAdc
Warm-Up Time(8)
—
—
20
—-
ms
Offset Stability(9)
—
—
0.5
—-
%VFSS
Sensitivity
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 0 to 85C, relative to 25C.
Output deviation with minimum rated pressure applied, over the temperature range of 0 to 85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. 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.
8. Warm-up Time is defined as the time required for the product to meet the specified output voltage after the Pressure has been stabilized.
9. Offset Stability is the product's output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test.
MPXV7007
2
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Freescale Semiconductor, Inc.
Pressure
Maximum Ratings
Table 3. Maximum Ratings(1)
Rating
Symbol
Value
Unit
Maximum Pressure
Pmax
75
kPa
Storage Temperature
Tstg
–40 to +125
C
Operating Temperature
TA
–40 to +125
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
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
GND
3
Figure 1. Integrated Pressure Sensor Schematic
MPXV7007
Sensors
Freescale Semiconductor, Inc.
3
Pressure
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 fluorosilicone gel
isolates the die surface and wire bonds from the environment,
while allowing the pressure signal to be transmitted to the
sensor diaphragm.
The MPXV7007 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
0 to 85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.)
MPXV7007
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Pressure
5.0
Transfer Function:
Vout = VS*(0.057*P+0.5) ± ERROR
VS = 5.0 Vdc
TEMP = 0º to 85ºC
4.5
4.0
3.5
Output (V)
3.0
2.5
TYPICAL
MAX
2.0
MIN
1.5
1.0
0.5
0 -7
0
7
Differential Pressure (kPa)
Figure 4. Output versus Pressure Differential
Transfer Function
Nominal Transfer Value: Vout = VS x (0.057 x P + 0.5)
± (Pressure Error x Temp. Factor x 0.057 x VS)
VS = 5.0 V  0.25 Vdc
Temperature Error Band
MPXV7007 SERIES
4.0
Temp
3.0
Temperature
Error
Factor
2.0
Multiplier
–40º
0º to 85º
+125º
3
1
3
40
60
1.0
0.0
–40
–20
0
20
80
100
120
140
Temperature in ºC
NOTE: The Temperature Multiplier is a linear response from 0º to –40ºC and from 85º to 125ºC.
MPXV7007
Sensors
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5
Pressure
Pressure Error Band
0.5
0.4
0.3
Pressure
Error
(kPa)
0.2
0.1
0
–0.1
Pressure (kPa)
-7
+7
0
–0.2
–0.3
–0.4
–0.5
Pressure
- 7 to 7 (kPa)
Error (Max)
±0.5 (kPa)
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 fluoro silicone gel
which protects the die from harsh media. The pressure
Part Number
sensor is designed to operate with both positive and negative
differential pressure applied, P1 > P2 or P1 < P2.
The Pressure (P1) side may be identified by using the
following table:
Pressure (P1)
Side Identifier
Case Type
MPXV7007GC6U/C6T1
482A
Side with Port Attached
MPXV7007GP
1369
Side with Port Attached
MPXV7007DP/DPT1
1351
Side with Part Marking
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
MPXV7007
6
Sensors
Freescale Semiconductor, Inc.
Pressure
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
MPXV7007
Sensors
Freescale Semiconductor, Inc.
7
Pressure
PACKAGE DIMENSIONS
2 PLACES 4 TIPS
0.006 (0.15) C A B
E
A
GAGE
PLANE
e
5
4
e/2
θ
.014 (0.35)
L
D
A1
DETAIL G
8
1
b
0.004 (0.1)
8X
F
M
C A B
E1
B
N
GND
+Vout
Vs
-Vout
N/C
N/C
N/C
N/C
STYLE 2:
PIN 1.
2.
3.
4.
5.
6.
7.
8.
N/C
Vs
GND
Vout
N/C
N/C
N/C
N/C
∅T
M
A
P
STYLE 1:
PIN 1.
2.
3.
4.
5.
6.
7.
8.
8X
0.004 (0.1)
K
DETAIL G
C
SEATING
PLANE
NOTES:
1. CONTROLLING DIMENSION: INCH.
2. INTERPRET DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994.
3. DIMENSIONS "D" AND "E1" DO NOT INCLUDE
MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED 0.006 (0.152)
PER SIDE.
4. DIMENSION "b" DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.008 (0.203) MAXIMUM.
DIM
A
A1
b
D
E
E1
e
F
K
L
M
N
P
T
θ
INCHES
MILLIMETERS
MIN
MAX
MIN MAX
0.370
0.390
9.39
9.91
0.002
0.010
0.05
0.25
0.038
0.042
0.96
1.07
0.465
0.485
11.81 12.32
0.680
0.700
17.27 17.78
0.465
0.485
11.81 12.32
0.100 BSC
2.54 BSC
0.240
0.260
6.10
6.60
0.115
0.135
2.92
3.43
0.040
0.060
1.02
1.52
0.270
0.290
6.86
7.37
0.160
0.180
4.06
4.57
0.009
0.011
0.23
0.28
0.110
0.130
2.79
3.30
0˚
7˚
0˚
7˚
CASE 1351-01
ISSUE O
SMALL OUTLINE PACKAGE
MPXV7007
8
Sensors
Freescale Semiconductor, Inc.
Pressure
PACKAGE DIMENSIONS
2 PLACES 4 TIPS
0.008 (0.20) C A B
E
A
GAGE
PLANE
e
5
4
e/2
.014 (0.35)
θ
L
D
A1
DETAIL G
8
1
b
0.004 (0.1)
NOTES:
1. CONTROLLING DIMENSION: INCH.
2. INTERPRET DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994.
3. DIMENSIONS "D" AND "E1" DO NOT INCLUDE
MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED 0.006 (0.152)
PER SIDE.
4. DIMENSION "b" DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.008 (0.203) MAXIMUM.
8X
F
M
E1
B
∅T
N
K
A
P
C A B
8X
M
0.004 (0.1)
DETAIL G
C
SEATING
PLANE
DIM
A
A1
b
D
E
E1
e
F
K
L
M
N
P
T
θ
INCHES
MILLIMETERS
MIN
MAX
MIN
MAX
0.300
0.330
7.11
7.62
0.002
0.010
0.05
0.25
0.038
0.042
0.96
1.07
0.465
0.485
11.81
12.32
0.717 BSC
18.21 BSC
0.465
0.485
11.81
12.32
0.100 BSC
2.54 BSC
0.245
0.255
6.22
6.47
0.120
0.130
3.05
3.30
0.061
0.071
1.55
1.80
0.270
0.290
6.86
7.36
0.080
0.090
2.03
2.28
0.009
0.011
0.23
0.28
0.115
0.125
2.92
3.17
0˚
7˚
0˚
7˚
CASE 1369-01
ISSUE O
SMALL OUTLINE PACKAGE
MPXV7007
Sensors
Freescale Semiconductor, Inc.
9
Pressure
Table 4. Revision History
Revision
number
Revision
date
3
10/2012
Description of changes
• Deleted references to device numbers MPXV7007G6T1/U, MPXV7007G6U/T1 and
MPXV7007GPT1 throughout the document, deleted Case 482-01 Issue O Small Outline Package
diagram on page 7
MPXV7007
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MPXV7007
Rev. 3
10/2012
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