SCC SERIES
Pressure Sensors
FEATURES
· 0 - 5 to 0 - 300 psi
· Low Cost Sensor Element
· Internal Temperature
Compensation
· Differential, Gage and
Absolute
GENERAL DESCRIPTION
The SCC series offer an extremely low
cost sensor element with a temperature
stable output when driven with a constant
current source. These integrated circuit
sen-sors were designed for extremely cost
sensitive applications where precise
accuracy over a wide temperature range
is not required. This series is intended for
use with non-corrosive, non-ionic working
fluids such as air and dry gases.
Absolute devices have an internal vacuum
reference and an output voltage proportio-
nal to applied pressure. The differential
devices allow application of pressure to
either side of the diaphragm and the devices
are thereby available to measure both dif-
ferential and/or gage pressures.
This product is packaged either in
SenSym´s standard low cost chip carrier
"button" package, a plastic ported "N"
package, a metal package or a dual inline
package (DIP). All packages are designed
for applications where the sensing element
is to be integral to the OEM equipment. The-
se packages can be O-ring sealed, epoxied,
and/or clamped onto a pressure fitting. A
closed bridge four-pin SIP configuration is
APPLICATIONS
· Pneumatic Controls
· Automotive Diagnostics
· Medical Equipment
· Dental Equipment
· Environmental Controls
Scale:
1cm
½ inch
provided for electrical connection to the
button package. The TO can and the DIP
offer a 5-pin open bridge configuration.
EQUIVALENT CIRCUIT
Vs
ELECTRICAL CONNECTIONS
GND
1
out + 2
+VS 3
out - 4
+
Output
SCC..
Button Sensor
+Vs
1
out +
GND
+Vs
4
out -
vent hole
TO Can
(buttom view)
1
+Vs
out +
GND
1
P1
P2
4
+Vs
+Vs
-
Button Sensor or "N" Package
out -
GND
out +
4
+Vs
out -
Vs
SCCxxxGD2
DIP
SCCxxxAD2
DIP
SCCxxxD4
DIP
-
Output
The polarity indicated is for pressure applied to
SCC.../SCC...N
: P1
(forward gage)
SCC...ASO/GSO
: P1
(forward gage)
SCC...DD4
: P2
(backward gage)
SCC...GD2
SCC...AD2
:
:
P2
P1
(backward gage)
(forward gage)
+
(Open Bridge)
TO Can or DIP Package
January 1998/040
Aubinger Weg 27, 82178 Puchheim, Germany
Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33
http://www.sensortechnics.com
SCC SERIES
Pressure Sensors
PRESSURE SENSOR CHARACTERISTICS
Maximum Ratings
(For All Devices)
Supply Current, I
S
Temperature Ranges
Compensated
Operating
Storage
Humidity
Lead Temperature (soldering 4 sec)
Common-Mode Pressure
1.5 mA
0°C to +50°C
-40°C to +85°C
-55°C to +125°C
0 to 100 %RH
250°C
150 psi
Performance Characteristics
(Individual Models) I
S
= 1.0 mA, T
A
= 25°C
1
Part Number
SCC05(D,G)
SCC15A
SCC15(D,G)
SCC30(A,D,G)
SCC100A
SCC100(D,G)
9
SCC300A
Operating
Pressure
Range
0-5 psid(g)
0-15 psia
0-15 psid(g)
0-30 psid(g)
0-100 psia
0-100 psig
0-300 psia
Maximum
Over
Pressure
20 psi
30 psia
30 psi
60 psi
150 psia
150 psig
450 psia
Accuracy
2
0.50%
0.50%
0.50%
0.50%
0.50%
0.50%
0.50%
Effect
On Span
3
(0°C-50°C)
1.50%
1.50%
1.50%
1.50%
1.50%
1.50%
1.50%
Effect
On Offset
4
(0°C-50°C)
2.00%
2.00%
2.00%
2.00%
2.00%
2.00%
2.00%
Full-Scale
Span
5
(mV)
25-65
30-95
40-95
60-150
85-225
85-225
50-120
Performance Characteristics
(All Models) I
S
= 1.0 mA, T
A
= 25°C
Characteristics
Zero Pressure Offset
Combined, Linearity, Hysteresis, Repeatability
2
Temperature Effect on Span
3, 8
Temperature Effect on Offset
4,8
Long Term Stability of Offset and Span
6
Response Time (10% to 90%)
7
Input Impedance
Output Impedance
Min.
-30.0
---
---
---
---
---
4.00
4.00
Typ.
-10
0.25
0.25
0.50
0.10
0.10
5.00
5.00
Max.
20.0
0.50
1.50
2.00
---
---
6.50
6.50
Unit
mV
%FSO
%FSO
%FSO
%FSO
mSec
kΩ
kΩ
Specification Notes:
1:
2:
3:
4:
5:
6:
Reference Conditions: Supply Current = 1.0 mA, T
A
=25°C, Common-mode Line Pressure = 0 psig, Pressure Applied to P1, unless otherwise noted.
Accuracy is the sum of Hysterisis and Linearity. Hysterisis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure.
Linearity refers to the best straight line fit as measured for the offset, full-scale and 1/2 full-scale pressure at 25°C.
This is the maximum temperature shift for span when measured between 0°C and 50°C relative to the 25°C reading. Typical temperature coefficients for span and resistance are
-2200 ppm/°C and +2200 ppm/°C respectively.
This is the maximum temperature shift for offset when measured between 0°C and 50°C relative to the 25°C reading.
Span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure.
Maximum difference in output at any pressure with the operating pressure range and temperature within
0°C to 50°C after:
a)
100 temperature cycles, 0°C to 50°C
b)
1.0 million pressure cycles, 0 psi to full-scale span
Response time for a 0 psi to full-scale span pressure step change. 10% to 90% rise time
Temp effect on span and offset are guaranteed by design. Therefore these parameters are not 100% tested.
The SCC100D devices can only be used in a forward gauge mode. Application of more than 30 psig to the back side of any of the SCC Series devices can result in device failure.
7:
8:
9:
January 1998/040
Aubinger Weg 27, 82178 Puchheim, Germany
Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33
http://www.sensortechnics.com
SCC SERIES
Pressure Sensors
PHYSICAL DIMENSIONS
Button Package
Basic Sensor DIP "D2" Package
January 1998/040
Aubinger Weg 27, 82178 Puchheim, Germany
Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33
http://www.sensortechnics.com
SCC SERIES
Pressure Sensors
PHYSICAL DIMENSIONS (cont.)
Basic Sensor DIP "D4" Package
N Package
January 1998/040
Aubinger Weg 27, 82178 Puchheim, Germany
Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33
http://www.sensortechnics.com
SCC SERIES
Pressure Sensors
PHYSICAL DIMENSIONS (cont.)
AHO Package (TO-5)
GSO Package (TO-39)
ORDERING INFORMATION
Pressure Range
Absolute Pressure
0 - 15 psi
0 - 30 psi
0 - 100 psi
0 - 300 psi
Gage Pressure
0 - 5 psi
0 - 15 psi
0 - 30 psi
0 - 100 psi
Differential Pressure
0 - 5 psi
0 - 15 psi
0 - 30 psi
0 - 100 psi
(9)
Button Package
Order Part Number
"N" Package
TO Package
DIP Package
single port
SCC15AN
SCC30AN
SCC100AN
---
use
differential
devices
SCC15AHO
SCC30AHO
SCC100AHO
SCC300AHO
SCC05GSO
SCC15GSO
SCC30GSO
---
---
---
---
---
SCC15AD2
SCC30AD2
SCC100AD2
DIP Package
Dual port
---
---
---
---
---
---
---
---
SCC05DD4
SCC15DD4
SCC30DD4
SCC100DD4
SCC15A
SCC30A
SCC100A
---
use
differential
devices
SCC05GD2
SCC15GD2
SCC30GD2
---
---
---
---
---
SCC05D
SCC15D
SCC30D
SCC100D
SCC05DN
SCC15DN
SCC30DN
SCC100DN
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.
January 1998/040
Aubinger Weg 27, 82178 Puchheim, Germany
Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33
http://www.sensortechnics.com
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