MS4525
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PCB Mounted Pressure Transducers
Amplified Ratiometric Analog Output
Differential, Gage, Absolute, Compound, & Vacuum
Temperature Compensated
3.3 or 5.0 Vdc Supply Voltage
DESCRIPTION
The MS4525 is a small, ceramic based, PCB mounted pressure transducer from Measurement Specialties. The
transducer is built using Measurement Specialties’ proprietary UltraStable™ process and the latest CMOS
sensor conditioning circuitry to create a low cost, high performance transducer designed to meet the strictest
requirements from OEM customers.
The MS4525 is fully calibrated and temperature compensated with a total error band (TEB) of less than 1.0%
over the compensated range. The sensor operates from single supply of either 3.3 or 5.0Vdc and requires a
single external component for proper operation.
The rugged ceramic transducer is available in side port, top port, and manifold mount and can measure
absolute, gage, differential, or compound pressure from 1 to 150psi. The 1/8” barbed pressure ports mate
securely with 3/32” ID tubing.
FEATURES APPLICATIONS
PSI Pressure Ranges
Factory Automation
PCB Mountable
Altitude and Airspeed Measurements
High Level Analog Output
Medical Instruments
Barbed Pressure Ports
Leak Detection
STANDARD RANGES (PSI)
Pressure
Absolute
Gage
Differential
Compound
Vacuum
Option Availability
1
DS, SS, TP, MM
DS, SS, TP, MM
-F
2
DS, SS, TP, MM
DS, SS, TP, MM
-F
5
DS, SS, TP, MM
DS, SS, TP ,MM
-F
15
SS, TP
DS, SS, TP, MM
DS, MM
SS, TP
SS, TP, DS
-F
30
SS, TP
DS, SS, TP, MM
DS, MM
SS, TP
-F
50
SS, TP
DS, SS, TP, MM
DS, MM
SS, TP
-F
100
SS, TP
DS, SS, TP, MM
DS, MM
SS, TP
-F
150
SS, TP
DS, SS, TP, MM
DS, MM
SS, TP
-F
See Package Configurations: DS= Dual Side Port, SS= Single Side Port, TP= Top Port, MM= Manifold Mount
Pin Style “L” is only available SS and MM port types.
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BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Parameter
Conditions
Min
Max
Unit
Notes
Supply Voltage
TA = 25 °C
2.7
5.5
V
Output Current
TA = 25°C
3
mA
Load Resistance (RL)
TA = 25°C
10
kΩ
Storage Temperature
-40
+125
°C
Humidity
TA = 25°C
95
%RH
Non Condensing
Overpressure
TA = 25 °C, both Ports
Not to Exceed 300
psi
Burst Pressure
TA = 25 °C, Port 1
psi
See Table 1
ESD
HBM
-4
+4
kV
EN 61000-4-2
Solder Temperature
250°C, 5 sec max.
TABLE 1- BURST PRESSURE BY RANGE AND PACKAGE STYLE
Range
DS
TP, SS, MM
Unit
001
20
20
psi
002
20
20
psi
005
15
20
psi
015
45
90
psi
030
90
200
psi
050
150
300
psi
100
300
300
psi
150
300
300
psi
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ENVIRONMENTAL SPECIFICATIONS
Parameter
Conditions
Mechanical Shock
Mil Spec 202F, Method 213B, Condition C, 3 Drops
Mechanical Vibration
Mil Spec 202F, Method 214A, Condition 1E, 1Hr Each Axis
Thermal Shock
100 Cycles over Storage Temperature, 30 minute dwell
Life
1 Million FS Cycles
MTTF
>10Yrs, 70 ºC, 10 Million Pressure Cycles, 120%FS
Pressure
PERFORMANCE SPECIFICATIONS
Supply Voltage1: 5.0V or 3.3 Vdc
Reference Temperature: 25°C (unless otherwise specified)
PARAMETERS
MIN
TYP
MAX
UNITS
NOTES
Accuracy
-0.25
0.25
%Span
2
Total Error Band (TEB)
-1.0
1.0
%Span
3,5
Supply Current
3
mA
5
Compensated Temperature
-10
+85
ºC
4
Operating Temperature
-25
+105
ºC
Response Time
1
mS
5
Weight
3
grams
Media
Non-Corrosive Dry Gases Compatible with Ceramic, Silicon,
Borosilicate Glass, PPS, RTV, Gold, Aluminum and Epoxy. See
“Wetted Material by Port Designation” chart below.
Notes
1. Proper operation requires an external capacitor placed as shown in Connection Diagram. Output is ratiometric to supply voltage
variations of less than 10%.
2. The maximum deviation from a best fit straight line (BFSL) fitted to the output measured over the pressure range at 25°C. Includes all
errors due to pressure non linearity, hysteresis, and non repeatability.
3. Total error band includes all accuracy errors, thermal errors over the compensated temperature range, and span and offset calibration
tolerances. For ideal sensor output with respect to input pressure, reference Pressure Transfer Function charts below. TEB values are
valid only at the calibrated supply voltage.
4. For errors beyond the compensated temperature range, see Extended Temperature Multiplier chart below.
5. This product can be configured for custom OEM requirements, contact factory for lower power consumption or higher accuracy.
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CONNECTION DIAGRAM
Notes
1. Place 100nF capacitor between Supply and GND to within 2 cm of sensor.
PRESSURE AND TEMPERATURE TRANSFER FUNCTION
0.000
0.330
1.650
2.970
3.300
Pmin
Output Voltage (V)
Pmax
Pressure
0.165
3.135
A Type
B Type
0.000
0.500
2.500
4.500
5.000
Pmin
Output Voltage (V)
Pmax
Pressure
0.250
4.750
A Type
B Type
Output Voltage = __________________
80% *Supply Voltage
Pmax-Pmin *
A Type:
Output Voltage = __________________
90% *Supply Voltage
Pmax-Pmin *+ 0.250
B Type:
+ 0.500 Output Voltage = __________________
80% *Supply Voltage
Pmax-Pmin *(Pressure
applied
A Type:
Output Voltage = __________________
90% *Supply Voltage
Pmax-Pmin *+ 0.165
B Type:
- Pmin) + 0.330
(Pressure
applied - Pmin)
(Pressure
applied - Pmin)
(Pressure
applied - Pmin)
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EXTENDED TEMPERATURE MULTIPLIER CHART
PACKAGE, PINOUT & PRESSURE TYPE CONFIGURATION
0.0
0.5
1.5
-25
2.0
-10 520 35 50 65 80 11095 125
1.0
2.5
5
6
7
8 1
2
3
4 5
6
7
8 1
2
3
4
1
2
3
45
6
7
8 1
2
3
45
6
7
8 1
2
3
45
6
7
8
1
2
3
45
6
7
8
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Pin Name
Pin
Function
SUPPLY
2
Positive Supply Voltage
OUTPUT
3
Analog Output
GND
4
Ground
1, 5-8
No Connection
Pressure
Type
Pmin
Pmax
Description
Absolute
0psiA
+Prange
Output is proportional to the difference between 0psiA (Pmin) and pressure applied
to Port 1.
Differential/
Bidirectional
-Prange
+Prange
Output is proportional to the difference between Port 1 and Port 2. Output swings
positive when Port 1> Port 2. Output is 50% of supply voltage when Port 1=Port 2.
Gage
0psiG
+Prange
Output is proportional to the difference between 0psiG (Pmin) and Port 1. Output
swings positive when Port 1> Port 2.
Compound
-15psiG
+Prange
Output is proportional to the difference between -15psiG pressure (Pmin) and
pressure applied to Port 1.
Prange is equal to the maximum full scale pressure specified in the ordering information.
WETTED MATERIAL BY PORT DESIGNATION
Material
Style
Port
PPS
Ceramic
Silicon
Borosilicate
Glass
RTV
Gold
Aluminum
Epoxy
DS, MM
Port 1
X
X
X
X
X
X
Port 2
X
X
X
X
X
X
X
X
SS, TP
Port 1
X
X
X
X
X
X
X
X
"X" Indicates Wetted Material
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DIMENSIONS
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AVAILABLE OPTIONS
Gel Coat (-F Option)
The MS4525 is designed for non ionic and clean dry air applications. Select this option for added protection in
high humidity or slightly corrosive environments with the application of a silicone gel elastomer to sensor and
ASIC. For questions concerning media compatibility, contact the factory.
ORDERING INFORMATION
4525
-
DS
3
A
005
G
P
Model
-
Package Style
Supply
Voltage
Output Type
Pressure
Range
(psi)
Pressure
Type
Pin Style
Option Type
MS4525
-
SS = Single Sideport
DS = Dual Sideport
TP = Top Port
MM = Manifold
Mount
3 = 3.3 Vdc
5 = 5.0 Vdc
A = 10% to 90%
B = 5% to 95%
001
002
005
015
030
050
100
150
A = Absolute
D = Differential
G = Gage
C = Compound
V = Vacuum
P = Thru Hole
S = J Lead
L = In Line
Blank = No Option
F = Gel Coating
NORTH AMERICA
EUROPE
ASIA
Measurement Specialties
45738 Northport Loop West
Fremont, CA 94538
Tel: 1-800-767-1888
Fax: 1-510-498-1578
Sales: pfg.cs.amer@meas-spec.com
Measurement Specialties
(Europe), Ltd.
26 Rue des Dames
78340 Les Clayes-sous-Bois, France
Tel: +33 (0) 130 79 33 00
Fax: +33 (0) 134 81 03 59
Sales: pfg.cs.emea@meas-spec.com
Measurement Specialties
(China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518057
China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
Sales: pfg.cs.asia@meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement
Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does
Measurement Specialties, Inc. 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 can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
