SX100GD2 SENSYM, SX100GD2 Datasheet - Page 7

• Manufacturer Part Number: SX100GD2
• Description: PRESSURE SENSOR, 0-100PSI
• Manufacturer: SENSYM

Specifications of SX100GD2

• External Depth: 11.94mm
• External Length / Height: 13.84mm
• External Width: 13.97mm
• Hysteresis: 0.5%
• Lead Spacing: 2.54mm
• Linearity: 0.2%
• Operating Pressure Range: 0 To 100psig
• Operating Temperature Max: 85°C

APPLICATION INFORMATION (cont.)
2. Apply the fuII-scale pressure and adjust
Table III. For 0 to 70°C operation
Note: Application information shown here is based on the closed bridge configuration.
July 2008 / 052
(b) Remove the short and adjust the
(c) Adjust the 2k reference (V R ) adjust
the span adjust pot, R 5 , to get the output
voltage that is desired to represent full-
scale.
12V
12V
15V
15V
500 Ω offset adjust pot until V x is
again equal to V R .
pot to get an output voltage (V O )
equal to 1.00V.
V S
5V
6V
9V
3.5V
4.5V
10V
10V
12V
12V
V B
7V
9.09k
8.45k
7.87k
7.15k
7.15k
7.68k
8.87k
R 2
A =
B =
Resistors labled R
86.6Ω
54.9Ω
36.5Ω
36.5Ω
31.6Ω
31.6Ω
118Ω
R 1
Figure V: Button Sensor Amplifier Circuit
The choice of the operational amplifiers to
use is based on individual cost/performance
trade-offs. The accuracy will be primarily
limited by the amplifier’s common-mode
rejection, offset voltage drift with tempera-
ture and noise performance. Low cost, low
performance devices, such as the LM324
can be used if the temperature ranges
limited to 25°C +15°C and an accuracy of
+2% is adequate.
LT1014CN
LM10CN
SPAN
10V
10V
FS
3V
4V
5V
5V
5V
3
are 5-Element Resistor Arrays 10 kΩ. Two required
604Ω
604Ω
1.82k
511Ω
604Ω
1.4k
R 5
1k
V
O
= 4
[
1 +
R p
2k
2k
2k
5k
2k
5k
2k
10k
R
G
]
V
IN
+ V
For more precise applications amplifiers
such as the LT1014 and LT1002 have been
found to be excellent.
An amplifier that uses a single supply is
shown in Figure V. Table III gives resistor
values for various supply and full-scale
output combinations.
Factory compensated devices
This application note provides the neces-
sary information for temperature compen-
sating and calibrating the SX sensors. In
some case, the customer may find that SX
devices which have been factory adjusted
for temperature compensation and span are
more economical for a particular application.
SenSym does offer devices with this feature.
For more information on these factory
calibrated and compensated devices, the
SCX series and SDX series, please contact
Sensortechnics.
www.sensortechnics.com
R
Pressure sensors
SX Series
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