MOTOROLA MPX4250GS Operating overview integrated pressure sensor 0 to 250 kpa (0 to 36.3 psi) 0.2 to 4.91 volts output Datasheet

Order this document
by MPX4250D/D
SEMICONDUCTOR TECHNICAL DATA
$"$ ! !"$%"
"##%" #
$
"
!#$
"$
The MPX4250D 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.
OPERATING OVERVIEW
INTEGRATED
PRESSURE SENSOR
0 to 250 kPa (0 to 36.3 psi)
0.2 to 4.91 Volts Output
Features
• Differential and Gauge Applications Only
• 1.4% Maximum Error Over 0° to 85°C
BASIC CHIP
CARRIER ELEMENT
CASE 867–08, STYLE 1
• Ideally suited for Microprocessor Interfacing
• Patented Silicon Shear Stress Strain Gauge
• Temperature Compensated Over – 40° to +125°C
• Offers Reduction in Weight and Volume Compared to Existing Hybrid Modules
• Durable Epoxy Unibody Element
VS
3
THIN FILM
TEMPERATURE
COMPENSATION
AND
GAIN STAGE #1
X–ducer
SENSING
ELEMENT
GAIN STAGE #2
AND
GROUND
REFERENCE
SHIFT CIRCUITRY
1
PORT OPTION
CASE 867B–04, STYLE 1
Vout
PIN NUMBER
2
PINS 4, 5 AND 6 ARE NO CONNECTS
GND
Figure 1. Fully Integrated Pressure Sensor Schematic
1
Vout
4
N/C
2
Gnd
5
N/C
3
VS
6
N/C
NOTE: Pins 4, 5, and 6 are internal
device connections. Do not connect
to external circuitry or ground. Pin 1
is noted by the notch in the Lead.
MAXIMUM RATINGS(1)
Parametrics
Overpressure(2) (P1 > P2)
Burst Pressure(2) (P1 > P2)
Storage Temperature
Operating Temperature
Symbol
Value
Unit
Pmax
400
kPa
Pburst
1000
kPa
Tstg
– 40° to +125°
°C
TA
– 40° to +125°
°C
1. TC = 25°C unless otherwise noted.
2. Exposure beyond the specified limits may cause permanent damage or degradation to the device.
Senseon and X–ducer are trademarks of Motorola, Inc.
REV 1
Motorola Sensor Device Data
 Motorola, Inc. 1997
1
OPERATING CHARACTERISTICS (VS = 5.1 Vdc, TA = 25°C unless otherwise noted, P1 > P2)
Symbol
Min
Typ
Max
Unit
Pressure Range(1)
Characteristic
POP
0
—
250
kPa
Supply Voltage(2)
VS
4.85
5.1
5.35
Vdc
Supply Current
Io
—
7.0
10
mAdc
Minimum Pressure Offset(3)
@ VS = 5.1 Volts
(0 to 85°C)
VOFF
0.139
0.204
0.269
Vdc
Full Scale Output(4)
@ VS = 5.1 Volts
(0 to 85°C)
VFSO
4.844
4.909
4.974
Vdc
Full Scale Span(5)
@ VS = 5.1 Volts
(0 to 85°C)
VFSS
—
4.705
—
Vdc
Accuracy(6)
(0 to 85°C)
—
—
—
±1.4
%VFSS
∆V/∆P
—
18.8
—
mV/kPa
Response Time(7)
tR
—
1.0
—
ms
Output Source Current at Full Scale Output
lo+
—
0.1
—
mAdc
Warm–Up Time(8)
—
—
20
—
mSec
Offset Stability(9)
—
—
± 0.5
—
%VFSS
Symbol
Min
Typ
Max
Unit
Weight, Basic Element (Case 867)
—
—
4.0
—
Grams
Common Mode Line Pressure(10)
—
—
—
690
kPa
Sensitivity
MECHANICAL CHARACTERISTICS
Characteristic
NOTES:
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:
Output deviation from a straight line relationship with pressure over the specified pressure range.
• Temperature Hysteresis: 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.
• Pressure Hysteresis:
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.
• TcSpan:
Output deviation over the temperature range of 0° to 85°C, relative to 25°C.
• TcOffset:
Output deviation with minimum rated pressure applied, over the temperature range of 0° to 85°C, relative
to 25°C.
• Variation from Nominal: 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 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.
10. Common mode pressures beyond what is specified may result in leakage at the case–to–lead interface.
2
Motorola Sensor Device Data
FLUORO SILICONE
DIE COAT
DIE
STAINLESS STEEL
METAL COVER
ÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉ
P1
MPX4250D
OUPUT
(PIN 1)
WIRE BOND
LEAD
FRAME
A/D
50 pF
51 k
µ PROCESSOR
RTV DIE
BOND
P2
EPOXY CASE
Figure 2. Cross–Sectional Diagram
(Not to Scale)
Figure 3. Typical Decoupling Filter for Sensor to
Microprocessor Interface
Figure 2 illustrates the Differential/Gauge Pressure 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.
The MPX4250D 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 a typical decoupling circuit for interfacing
the integrated sensor to the A/D input of a microprocessor.
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 below. (The output will saturate outside of the specified pressure range.)
5.0
4.5
OUTPUT (Volts)
4.0
3.5
MAX
TRANSFER FUNCTION:
Vout = VS* (0.00369*P + 0.04) ± Error
VS = 5.1 Vdc
TEMP = 0 to 85°C
TYP
3.0
2.5
2.0
1.5
MIN
1.0
250
260
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
0.5
PRESSURE in kPa
Figure 4. Output versus Differential Pressure
Motorola Sensor Device Data
3
Transfer Function (MPX4250D)
Nominal Transfer Value: Vout = VS x (0.00369 x P + 0.04)
Nominal Transfer Value:
(Pressure Error x Temp. Factor x 0.00369 x VS)
Nominal Transfer Value: VS = 5.1
0.25 Vdc
"
"
Temperature Error Band
MPX4250D Series
4.0
3.0
Temperature
Error
Factor
2.0
Temp
Multiplier
– 40
0 to 85
+125
3
1
3
1.0
0.0
–40
–20
0
20
40
60
80
100
120
140
Temperature in °C
NOTE: The Temperature Multiplier is a linear response from 0° to –40°C and from 85° to 125°C.
Pressure Error Band
5.0
4.0
Pressure
Error
(kPa)
3.0
2.0
1.0
0
–1.0
–2.0
–3.0
–4.0
–5.0
0
25
50
75 100 125 150 175 200 225 250
Pressure
(kPa)
MPX4250D Series
Pressure
Error (max)
0 to 250 kPa
± 3.45 kPa
ORDERING INFORMATION
The MPX4250D series silicon pressure sensors are available in the basic element package or with pressure port fittings that
provide mounting ease and barbed hose connections.
Device Type
Basic Element
Ported Elements
4
Options
Case No.
MPX Series Order No.
Marking
Differential/Gauge, Element
Case 867–08
MPX4250D
MPX4250D
Differential/Gauge, Ported
Case 867B–04
MPX4250DP
MPX4250DP
Differential/Gauge, Stove Pipe Port
Case 867E–03
MPX4250GS
MPX4250D
Differential/Gauge, Axial Port
Case 867F–03
MPX4250GSX
MPX4250D
Motorola Sensor Device Data
PACKAGE DIMENSIONS
C
R
M
B
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).
POSITIVE PRESSURE
(P1)
–A–
N
PIN 1
SEATING
PLANE
1
2
3
4
5
DIM
A
B
C
D
F
G
J
L
M
N
R
S
L
6
–T–
G
J
S
F
D 6 PL
0.136 (0.005)
M
T A
M
INCHES
MIN
MAX
0.595
0.630
0.514
0.534
0.200
0.220
0.027
0.033
0.048
0.064
0.100 BSC
0.014
0.016
0.695
0.725
30 _NOM
0.475
0.495
0.430
0.450
0.090
0.105
STYLE 1:
PIN 1.
2.
3.
4.
5.
6.
CASE 867–08
ISSUE N
MILLIMETERS
MIN
MAX
15.11
16.00
13.06
13.56
5.08
5.59
0.68
0.84
1.22
1.63
2.54 BSC
0.36
0.40
17.65
18.42
30 _NOM
12.07
12.57
10.92
11.43
2.29
2.66
VOUT
GROUND
VCC
V1
V2
VEX
BASIC ELEMENT (D)
–T–
A
U
L
SEATING
PLANE
R
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
PORT #1
POSITIVE
PRESSURE (P1)
V
DIM
A
B
C
D
F
G
J
K
L
N
P
Q
R
S
U
V
–Q–
N
B
K
1
PIN 1
–P–
C
J
0.25 (0.010)
M
T Q
3
4
5
6
S
G
M
2
F
D 6 PL
0.13 (0.005)
M
T P
CASE 867B–04
ISSUE E
S
Q
S
INCHES
MIN
MAX
1.145
1.175
0.685
0.715
0.305
0.325
0.027
0.033
0.048
0.064
0.100 BSC
0.014
0.016
0.695
0.725
0.290
0.300
0.420
0.440
0.153
0.159
0.153
0.159
0.230
0.250
0.220
0.240
0.910 BSC
0.182
0.194
STYLE 1:
PIN 1.
2.
3.
4.
5.
6.
MILLIMETERS
MIN
MAX
29.08
29.85
17.40
18.16
7.75
8.26
0.68
0.84
1.22
1.63
2.54 BSC
0.36
0.41
17.65
18.42
7.37
7.62
10.67
11.18
3.89
4.04
3.89
4.04
5.84
6.35
5.59
6.10
23.11 BSC
4.62
4.93
VOUT
GROUND
VCC
V1
V2
VEX
PRESSURE SIDE PORTED (AP)
Motorola Sensor Device Data
5
PACKAGE DIMENSIONS – CONTINUED
C
–B–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
A
DIM
A
B
C
D
E
F
G
J
K
N
S
V
V
PIN 1
PORT #1
POSITIVE
PRESSURE
(P1)
6
K
4
3
2
1
S
J
N
5
G
F
E
D
–T–
6 PL
0.13 (0.005)
M
T B
M
CASE 867E–03
ISSUE D
INCHES
MIN
MAX
0.690
0.720
0.245
0.255
0.780
0.820
0.027
0.033
0.178
0.186
0.048
0.064
0.100 BSC
0.014
0.016
0.345
0.375
0.300
0.310
0.220
0.240
0.182
0.194
STYLE 1:
PIN 1.
2.
3.
4.
5.
6.
MILLIMETERS
MIN
MAX
17.53
18.28
6.22
6.48
19.81
20.82
0.69
0.84
4.52
4.72
1.22
1.63
2.54 BSC
0.36
0.41
8.76
9.53
7.62
7.87
5.59
6.10
4.62
4.93
VOUT
GROUND
VCC
V1
V2
VEX
PRESSURE SIDE PORTED (AS)
–T–
C
A
U
E
–Q–
N
V
B
R
PIN 1
PORT #1
POSITIVE
PRESSURE
(P1)
–P–
0.25 (0.010)
M
T Q
6
M
5
4
3
2
1
S
K
J
0.13 (0.005)
M
T P
S
D 6 PL
Q S
G
F
CASE 867F–03
ISSUE D
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
DIM
A
B
C
D
E
F
G
J
K
N
P
Q
R
S
U
V
INCHES
MIN
MAX
1.080
1.120
0.740
0.760
0.630
0.650
0.027
0.033
0.160
0.180
0.048
0.064
0.100 BSC
0.014
0.016
0.220
0.240
0.070
0.080
0.150
0.160
0.150
0.160
0.440
0.460
0.695
0.725
0.840
0.860
0.182
0.194
STYLE 1:
PIN 1.
2.
3.
4.
5.
6.
MILLIMETERS
MIN
MAX
27.43
28.45
18.80
19.30
16.00
16.51
0.68
0.84
4.06
4.57
1.22
1.63
2.54 BSC
0.36
0.41
5.59
6.10
1.78
2.03
3.81
4.06
3.81
4.06
11.18
11.68
17.65
18.42
21.34
21.84
4.62
4.93
VOUT
GROUND
VCC
V1
V2
VEX
PRESSURE SIDE PORTED (ASX)
6
Motorola Sensor Device Data
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
Motorola Sensor Device Data
7
Mfax is a trademark of Motorola, Inc.
How to reach us:
USA / EUROPE / Locations Not Listed: Motorola Literature Distribution;
P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 81–3–3521–8315
Mfax: [email protected] – TOUCHTONE 602–244–6609
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
– US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
INTERNET: http://motorola.com/sps
8
◊
MPX4250D/D
Motorola Sensor Device
Data
Similar pages