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ADVANCED COMMUNICATIONS & SENSING
USER GUIDE
SX8724SEVK
Evaluation Kit for SX8724S Data Acquisition System
ACS - Revision 1.0 May 2011
© Semtech Corp.
17.2.1 Sensor Pinout & Schematic
17.2.2 Sensor Transfer Function
The transfer function of the sensor is given in the figure below. It shows the output voltage (min., typ. and
max.) as a function of the absolute input pressure for the specified supply voltage.
Note: The given transfer function in the datasheet is for a 10V power supply, here the transfer function was
translated for a 3.3V power supply.
Figure 28. Pressure sensor pin out & equivalent schematic
Figure 29. Sensor transfer function
PIN 1
1
2
3
4
V
S
Sensing
Element
V
out+
V
out-
2
3
4
1
GND
Sensor output Voltage vs Pressure @ 3.3V supply
-2
0
2
4
6
8
10
12
14
16
0
20
40
60
80
100
120
140
160
180
200
Pressure [kPa]
O
u
tp
u
t V
o
lt
ag
e
[mV
DC]
Min
Typ
Max
