SXL010GSMT
Surface mount pressure sensors
FEATURES
· 0...10 "H
2
O
· Small surface mount
package
· Gage and absolute pressure
· Low profile and ported
packages
· Low cost
GENERAL DESCRIPTION
The SXL010GSMT surface mount
sensor provides the most cost
effective method of measuring gage
pressures in a fully packaged part.
SenSym's unique package now
allows accurate measurement of gage
pressure of 0...10 "H
2
O in a true
ceramic surface mount housing.
The SXL010GSMT offers a 4-pin
closed bridge configuration for
electrical connection with additional
pads provided for mechanical support.
The SXL010GSMT is designed prima-
rily for use with clean dry gases such
as air, nitrogen and the like.
Scale:
1 cm
½ inch
APPLICATIONS
· Medical instrumentation
· Barometers/Altimeters
· Industrial controls
PRESSURE SENSOR CHARACTERISTICS
Maximum ratings
(for all devices)
Supply voltage V
S
Humidity
Soldering temperature (2 - 4 sec.)
Proof pressure
9
Common mode pressure
Temperature ranges
Operating
Storage
+12 VDC
0 to 99% RH
250°C
7 psi
50 psi
-40 to +125°C
-55 to +125°C
EQUIVALENT CIRCUIT
ELECTRICAL CONNECTION
Vs
+
Output
-
September 2004 / 590
1/2
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SXL010GSMT
Surface mount pressure sensors
PERFORMANCE CHARACTERISTICS
1
Characteristics
Operating pressure range
Zero pressure offset (@T
A
= 25°C)
Full-scale span
10
Temp. coefficient
5,8
Temp. effect
5,8
Combined linearity and hysteresis
3
Long term stability of offset and span
7
Response time (10 to 90 %)
6
Input resistance T
A
= 25°C
Output impedance
Repeatability
Min.
0
-35
20
sp a n
resistance
offset
Typ.
-20
32.5
-2300
+750
+4
0.2
0.1
100
4.2
4.2
0.5
Max.
10
+20
80
Unit
"H
2
O
mV
ppm/°C
---
1.0
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---
---
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µV/V/°C
%FS
mV
µs
kΩ
%FS
---
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Specification notes:
Reference conditions: supply voltage, V
S
= 5Vdc; T
A
= 0°C to 70°C; common-mode line pressure = 0 psig, pressure applied to
P1 unless otherwise noted.
2.
Sensitivity is the ratio of the output signal voltage change to the corresponding input pressure change. The sensitivity is
characterized by design and periodic production testing. This parameter is not 100 % tested in production.
3.
Linearity is is based on best straight line. Hysteresis - the maximum output difference at any point within the operating
pressure range for increasing and decreasing pressure.
4.
Difference in output at any pressure with the operating pressure range and temperature within 0°C to +70°C after:
a) 100 temperature cycles, 0°C to +70°C
b) 1.0 million pressure cycles, 0 psi to full-scale span.
5.
This is the best straight line fit for operation between 0°C to 70°C. For operation outside this temperature, contact factory for
more specific application information.
6.
Response time for a 0 psi to full scale span pressure step change.
7.
Long term stability over a one year period.
8.
This parameter is not 100 % tested. it is guaranteed by process design and tested on a sample basis only. Temp. coefficient of
span for the 1 and 5 psi devices is -2550ppm/C to -2050 ppm/C.
9.
If the proof pressure is exceed out even momentarily, the sensing die may fracture. However, when the devices operate in
forward gage mode and no special care is taken, the package may leak when the pressure exceeds to specified value or
30 psi, whatever is less.
10.
Span is the algebraic difference between the output voltage at full scale pressure and the output at zero pressure.
1.
PHYSICAL DIMENSIONS
SenSym and Sensortechnics
reserve the right to make
changes to any products
herein.
SenSym
and
Sensortechnics do not
assume any liability arising
out of the application or use
of any product or circuit
described herein, neither
does it convey any license
under its patent rights nor
the rights of others.
mass:
1 g
dimensions in inches (mm)
2/2
September 2004 / 590
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