23 and 33
Standard
23
33
PC Board Mountable Pressure Sensor
0-100 mV Output
Current Excitation
Gage and Differential
Temperature Compensated
DESCRIPTION
The 23 and 33 are temperature compensated, piezoresistive silicon pressure sensors packaged in a
TO-8 configuration. It provides excellent performance and long-term stability.
Gage and absolute pressure ranges from 0-2 to 0-250 psi are available. Integral temperature
compensation is provided over a range of 0-50°C using laser-trimmed resistors. An additional laser-trimmed
resistor is included to normalize pressure sensitivity variations by programming the gain of an external
differential amplifier. This provides sensitivity interchangeability of ±1%.
Please refer to the 23 and 33 1 psi datasheets for low pressure applications.
FEATURES
TO-8 Package
0ºC to 50ºC Compensated
Temperature Range
±0.1% Non Linearity
1.0% Interchangeable Span
(provided by gain set resistor)
Solid State Reliability
APPLICATIONS
Medical Instruments
Process Control
Factory Automation
Handheld Calibrators
Airspeed Measurement
STANDARD RANGES
Range
0 to 2
0 to 5
0 to 10
0 to 15
0 to 30
0 to 50
0 to 100
0 to 250
23
psig
33
psid
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23 and 33
Standard
PERFORMANCE SPECIFICATIONS
Supply Current: 1.5mA
Ambient Temperature: 25°C (unless otherwise specified)
PARAMETERS
Span
Span (2psi version)
Zero Pressure Output
Pressure Non Linearity
Pressure Hysteresis
Input & Output Resistance
Temperature Error – Span
Temperature Error – Zero
Thermal Hysteresis – Zero
Supply Current
Response Time (10% to 90%)
Output Noise (10Hz to 1kHz)
Insulation Resistance (50 Vdc)
Long Term Stability (Offset & Span)
Pressure Overload
Compensated Temperature
Operating Temperature
Storage Temperature
Weight
Solder Temperature
Media
250ºC Max 5 Sec.
Non-Corrosive Dry Gases Compatible with Silicon, Pyrex,
RTV, Gold, Nickel, and Aluminum
0
-40
-50
50
±0.2
3X
50
+125
+150
3
MIN
75
30
-2
-0.1
-0.05
2500
-0.5
-0.5
TYP
100
MAX
150
60
2
UNITS
mV
mV
mV
%Span
%Span
Ω
%Span
%Span
%Span
mA
mS
µV p-p
M
Ω
%Span
Rated
°C
°C
°C
grams
NOTES
1
1
2
±0.05
±0.01
4400
±0.3
±0.1
±0.1
1.5
1.0
1.0
0.1
0.05
6000
0.5
0.5
2.0
3
3
3
4
5
6
7
Notes
1.
Ratiometric to supply current.
2.
Best fit straight line.
3.
Maximum temperature error between 0°C and 50°C with respect to 25°C.
For 2 psi devices, Temperature Error – Zero is ±1.25%.
4.
For a zero-to-full scale pressure step change.
5.
Minimum resistance between case and pins.
6.
Long term stability over a one year period with constant current and temperature.
7.
For topside applications, 2X maximum for 250 psi device, 20 psi maximum for 2 and 5 psi devices. For backside applications, 3X not to
exceed 100 psi on all ranges.
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23 and 33
Standard
DIMENSIONS
CONNECTIONS
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23 and 33
Standard
APPLICATION SCHEMATIC
ORDERING INFORMATION
23A - 015 G
Type (G = Gage)
Pressure Range
Model
33A - 015 D
Type (D = Differential)
Pressure Range
Model
NORTH AMERICA
Measurement Specialties
45738 Northport Loop West
Fremont, CA 94538
Tel: 1-800-767-1888
Fax: 1-510-498-1578
Sales:
pfg.cs.amer@meas-spec.com
EUROPE
Measurement Specialties
(Europe), Ltd.
26 Rue des Dames
78340 Les Clayes-sous-Bois, France
Tel: +33 (0) 130 79 33 00
Fax: +33 (0) 134 81 03 59
Sales:
pfg.cs.emea@meas-spec.com
ASIA
Measurement Specialties
(China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518057
China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
Sales:
pfg.cs.asia@meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement
Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
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