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Silicon Pressure Sensors
SX 0 psi to 1 psi to 0 psi to 150 psi
SX Series
FEATURES
• Low Cost
• High-Impedance Bridge
• Absolute and
• Differential (Gauge)
• Low Noise
• Low Power Consumption
for Battery Power
TYPICAL APPLICATIONS
• Medical
www.DataSheet4U.•comInstrumentation
• Barometric
• Measurement
• Pneumatic Controls
• Battery Powered
Equipment
EQUIVALENT CIRCUITS
GENERAL DESCRIPTION
The SX Series pressure sensors provide the lowest cost components for
measuring pressures up to 150 psi. These sensors are designed for use with
non-corrosive, non-ionic media, such as air and dry gases. Convenient
pressure ranges are available to measure differential, gauge, and absolute
pressures from 0 psi to 1 psi (SX01) up to 0 psi to 150 psi (SX150).
Button, Nipple and N Packages
The Absolute (A) devices have an internal vacuum reference and an output
voltage proportional to absolute pressure. The differential (D) devices allow
application of pressure to either side of the diaphragm and can be used for
gauge or differential pressure measurements.
DIP Packages
WARNING
PERSONAL INJURY
DO NOT USE these products
as safety or emergency stop
devices or in any other
application where failure of
the product could result in
personal injury.
Failure to comply with
these instructions could
result in death or serious
injury.
This product is packaged in either the standard low cost chip carrier “button”
package, a plastic ported “N” package, or a DIP package. All packages are
designed for applications where the sensing element is integral to the OEM
equipment. These packages can be o-ring sealed, epoxied, and/or clamped
onto a pressure fitting. A closed-bridge four pin SIP configuration is provided
for electrical connection to the “Button” or “N” Package. The DIP Package
mounts on a PC board like a standard IC with through-hole pins. This
extremely small size package enables the use of multiple sensors in
applications with limited space.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for reference
only. Do not use this document as a product installation guide.
• Complete installation, operation, and maintenance information is
provided in the instructions supplied with each product.
Failure to comply with these instructions could result in death or
serious injury.
Sensing and Control
Silicon Pressure Sensors
SX 0 psi to 1 psi to 0 psi to 150 psi
SX Series
CHARACTERISTICS (Maximum Ratings For All Devices)
Supply Voltage, VS
Operating Temperature Range
12 Vdc
-40 °C to 85 °C [-40 °F to 185 °F]
Storage Temperature Range
-55 °C to 125 °C [-67 °F to 257 °F]
Humidity
0 % to 100 % RH
Common-mode Pressure
150 psig
Lead Soldering Temperature
250 °C [482 °F] 2 sec to 4 sec
PERFORMANCE CHARACTERISTICS(1)
Characteristic Description
www.DataSheZete4rUo.cPormessure Offset(2)
Temperature Coefficient of Offset(3,4)
Combined Pressure Non-Linearity, and Hysteresis(5)
Long Term Stability of Offset and Span(6)
Response Time (7)
Input Resistance
Temperature Coefficient of Resistance(3,4)
Temperature Coefficient of Span(3,4)
Output Resistance
Repeatability(8)
Min.
-35.0
–
–
–
–
–
690
-2550
–
–
Typ.
-20.0
4
0.2
0.1
100
4.1
750
-2150
4.1
0.5
Max.
0.0
–
±0.5
–
–
–
810
-1900
–
–
Unit
mV
µV/V/°C
%FSS
%FSS
µs
kΩ
ppm/°C
ppm/°C
kΩ
%FSS
SX PERFORMANCE CHARACTERISTICS(1)
Part
Number
Operating
Pressure Range
Sensitivity
(mV/V/psi)
Typ
Full-Scale Span(9)
Min.
(mV)
Typ.
Max.(10)
Burst
Pressure
SX01
0 psi to 1 psi
4.0 15 20 25 20 psi
SX05
0 psi to 5 psi
3.0 50 75 100 20 psi
SX15
0 psi to 15 psi
1.5
75 110 150 45 psi
SX30
0 psi to 30 psi
0.75
75 110 150 90 psi
SX100 0 psi to 100 psi
0.3
100 150 200 150 psi
SX150 0 psi to 150 psi
0.15
75 110 150 200 psi
Specification Notes:
Note 1: Reference Conditions; TA = 25 °C [77 °F], Supply VS = 5 Vdc; Common Line Pressure = 0 psig, Pressure Applied to P1
Note 2: The zero pressure offset is 0 mV minimum to -20 mV typical and 35 mV maximum for part numbers SXxxxGD2 and SXxxxDD4.
Note 3: Slope of best straight line fit from 0°C to 70°C. For operation outside this temperature range, contact factory for more information.
Note 4: This parameter is not 100% tested. It is guaranteed by process design.
Note 5: Pressure Hysteresis - the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure.
Pressure Non-linearity the maximum deviation of measure output, at constant temperature (25 °C [77 °F]), from “best straight line” through
three points (offset pressure, full-scale pressure, one-half full scale pressure).
Note 6: Long term stability over a one year period.
Note 7: Response time for a 0 psi to Full-Scale Span pressure step change, 10% to 90% rise time.
Note 8: Maximum difference in output at any pressure within the operating pressure range and the temperature range within 0 °C to 70 °C [32 °F to
158 °F] after:
a) 100 temperature cycles, 0 °C and 70 °C [32 °F to 158 °F]
b) 1 million pressure cycles, 0 psi to full-scale span.
Note 9: Full-scale span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure. Full-scale span is
ratiometric to the supply voltage.
Note 10: Exceeding maximum pressure can cause permanent sensor failure
2 Honeywell • Sensing and Control
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