MODEL 1230 Ultrastable
PC Board Mountable Pressure Sensor
0-100 mV Output
Absolute, Differential, and Gage
Wide Temperature Range
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Medical Instrumentation
Calibration
Process Control
Factory Automation
Air Flow Management
Leak Detection
DESCRIPTION
The Model 1230 is a high performance temperature
compensated, piezoresistive silicon pressure sensor packaged in
a dual-in-line configuration. It is intended for cost sensitive
applications where excellent performance and long-term
stability are required.
Integral temperature compensation is provided over a range
of -20°C to +85°C using laser-trimmed thick film resistors. An
additional laser-trimmed resistor is included to normalize pres-
sure sensitivity variations, for interchangeability of ±1%, by
programming the gain of an external differential amplifier.
Differential and gage pressure ranges from 0-15 PSI to
0-100 PSI are available. Absolute pressure ranges of 0-15 PSIA
to 0-30 PSIA are available. Multiple lead and tube
configurations are available for different applications.
Please refer to the low pressure section for information on
products with operating pressures less than 0-2 PSI. For a
compensated sensor using a current set resistor as opposed to a
gain set resistor, please refer to the Model 1240.
Pressure
FEATURES
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Dual-In-Line Package
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-20°C to +85°C Compensated
Temperature Range
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±0.1% Non-linearity
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±0.5% Temperature Performance
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1.0% Interchangeable Span
(provided by gain set resistor)
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Solid State Reliability
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Low Power
STANDARD RANGES
Range
0 to 15
0 to 30
0 to 50
0 to 100
psia
psid
psig
DIMENSIONS
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I n t e r n e t : w w w. m s i u s a . c o m
Te l : 1 - 7 5 7 - 7 6 6 - 1 5 0 0
N o r t h A m e r i c a To l l F r e e : 1 - 8 0 0 - 7 4 5 - 8 0 0 8
Fax: 1-757-766-4297
1-19
H I T S –
W i d e Te m p e r a t u r e R a n g e
PC Board Mountable Pressure Sensor
MODEL 1230 Ultrastable
PERFORMANCE SPECIFICATIONS
Supply Current: 1.5mA
Ambient Temperature: 25°C (Unless otherwise specified)
PARAMETERS
MIN
TYP
MAX
UNITS
NOTES
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Full Scale Output Span
75
100
150
mV
1
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Zero Pressure Output
2
±mV
3
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Pressure Non-linearity
0.05
0.1
±% Span
2
__________________________________________________________________________________________________________________________________________________
Pressure Hysteresis
0.01
0.1
±% Span
__________________________________________________________________________________________________________________________________________________
Input Resistance
2500
3500
4500
Ω
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Temperature Error - Span
0.3
0.5
±% Span
3, 4
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Temperature Error - Zero
0.1
0.5
±% Span
3, 4
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Temperature Coefficient - Resistant
0.145
%/ºC
4
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Thermal Hysteresis - Zero
0.05
±% Span
4
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Short Term Stability of Offset
0.05
±% Span
13
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Short Term Stability of Span
0.05
±% Span
13
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Long Term Stability of Offset
0.1
±% Span
14
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Long Term Stability of Span
0.1
±% Span
14
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Supply Current
0.5
1.5
2.0
mA
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Response Time (10% to 90%)
1.0
msec
5
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Output Noise
1.0
µV p-p
6
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Output Load Resistance
5
MΩ
7
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Insulation Resistance (50 VDC)
50
MΩ
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Pressure Overload
3X
Rated
8
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Media
Non-corrosive Gases Compatible with Wetted Materials
9
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Weight
3 grams
Notes
1. Output span of unamplified sensor.
2. Best Fit Straight Line.
3. For Model 1230, compensation resistors are an integral part of the sensor package;
no additional external resistors are required. Pins 7 and 8 must be kept open.
4. Temperature range: -20°C to +85°C in reference to 25°C.
5. For a zero-to-full scale pressure step change.
6. 10 Hz to 1kHz.
7. Prevents increase of TC–Span due to output loading.
8. 3X or 200 psi maximum, whichever is less. 20 psi for 2 psi and 5 psi versions.
9. Wetted materials are glass, ceramic, silicon, RTV, nickel, gold, and aluminum.
10. Soldering of lead pins: 250°C for 5 seconds, maximum.
11. Tube length: L=470 ± 5 mil, S=300 ± 3 mil, N=no tube.
12. Lead pins can either be in the same or the opposite direction as the pressure
tube. See Connections/Dimensions drawing for lead configurations.
13. Normalized offset bridge voltage: 7 days.
14. 1 year.
ORDERING INFORMATION
CONNECTIONS
1230 - 015 G - 3 S
Pressure Tubes (L, S, N - see note 12)
Lead Configuration (1, 3 - see note 13)
Type (G = Gage, A = Absolute, D = Differential)
Pressure Range
Model
APPLICATION SCHEMATIC
July 2003
H I T S –
W i d e Te m p e r a t u r e R a n g e
1-20
Pressure
Operating Temperature
–40°C to +125°C
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Storage Temperature
–50°C to +150°C
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