SDX Series
Low cost compensated pressure sensors in DIP package
PRESSURE SENSOR CHARACTERISTICS (all devices)
Maximum ratings
Supply voltage V
S
Maxium pressure on any port
Lead temperature (soldering 4 sec.)
+20 V
DC
150 psig
250°C
Environmental specifications
Temperature ranges
Compensated
Operating
Storage
Humidity limits
0 to 50°C
-40 to +85°C
-55 to +125°C
0 to 100% RH
STANDARD PRESSURE RANGES
Part number
SDX01...
SDX05...
SDX15A...
SDX15G2, ...D4
SDX30A...
SDX30G2, ...D4
SDX100A...
SDX100G2, ...D4
Operating pressure
0 - 1 psig/d
0 - 5 psig/d
0 - 15 psia
0 - 15 psig/d
0 - 30 psia
0 - 30 psig/d
0 - 100 psia
0 - 100 psig/d
Proof pressure
11
20 psi
20 psi
30 psi
30 psi
60 psi
60 psi
150 psi
150 psi
Full-scale span
1,2
Min.
17.37 mV
57.9 mV
86.85 mV
86.85 mV
86.85 mV
86.85 mV
96.5 mV
96.5 mV
Typ.
18 mV
60 mV
90 mV
90 mV
90 mV
90 mV
100 mV
100 mV
Max.
18.63 mV
62.1 mV
93.15 mV
93.15 mV
93.15 mV
93.15 mV
103.5 mV
103.5 mV
* Maximum pressure above which causes permanent sensor failure.
COMMON PERFORMANCE CHARACTERISTICS
1
Characteristic
Zero pressure offset
Combined linearity and hysteresis
3
Temperature effect on span (0 to 50°C)
4
Temperature effect on offset (0 to 50°C)
4
Repeatability
5
Input impedance
6
Output impedance
7
Common-mode voltage
8
Response time
9
Long term stability of offset and span
10
Min.
-1.0
---
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1.3
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Typ.
0
±0.2
±0.4
±0.2
±0.2
4.0
4.0
3.0
100
±0.1
Max.
+1.0
±1.0
±2.0
±1.0
±0.5
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5.0
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Unit
mV
%FSO
%FSO
mV
%FSO
kΩ
kΩ
V
DC
µsec
mV
Specification notes:
1.
Reference conditions: supply voltage, V
S
= 12 V
DC
, T
A
= 25°C, common-mode line pressure = 0 psig, pressure applied to port 2.
For absolute devices only, pressure is applied to port 1 and the output polarity is reversed.
2.
Span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure. Span is
ratiometric to the supply voltage.
3.
See Definition of Terms. Hysteresis - the maximum output difference at any point within the operating pressure range for
increasing and decreasing pressure.
4.
Maximum error band of the offset voltage and the error band of the span, relative to the 25°C reading.
5.
Maximum difference in output at any pressure with the operating pressure range and temperature within 0 to +50°C after:
a) 100 temperature cycles, 0 to + 50°C
b) 1.0 million pressure cycles, 0 psi to full-scale span
Input impedance is the impedance between pins 2 and 5.
6.
7.
Output impedance is the impedance between pins 1 and 3.
8.
This is the common-mode voltage of the output arms (pins 1 and 3) for V
S
= 12 V
DC
.
9.
Response time for a 0 psi to full-scale span pressure step change, 10 to 90 % rise time.
10.
Long term stability over a one year period.
11.
Maximum pressure at any port is the maximum operating plus common-mode pressure which can be applied. The proof
pressure for the forward gage of all devices in the D4-package is the specified value or 100 psi, whatever is less.
June 2008 / 062
2/4
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