1220
Standard
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• PC Board Mountable Pressure Sensor
• 0-50 mV Output
• Voltage Excitation
• Gage, Absolute, and Differential
• Temperature Compensated
DESCRIPTION
The 1220 is a temperature compensated, piezoresistive silicon pressure sensor packaged in a dual-in-
line configuration and intended for cost sensitive applications where excellent performance and long-term
stability are required.
When using the 1220 with a fixed voltage reference and current set resistor as shown in the application
schematic, a span of 50mV and 1% interchangeability can be achieved. Integral temperature compensation is
provided over a range of 0-50°C using laser-trimmed resistors. Gage, absolute, and differential pressure ranges
from 0-2 psi to 0-100 psi are available. Multiple lead and tube configurations are available for specific
applications.
Please refer to the 1220 1psi datasheet for low pressure applications. For current excitation, please
refer to the Model 1210.
FEATURES APPLICATIONS
• Dual-in-Line Package • Medical Instruments
• 0ºC to 50ºC Compensated
Temperature Range
• Airspeed and Altitude Measurements
• Process Control
• ±0.1% Non Linearity • Factory Automation
• 1.0% Interchangeable Span
(provided by current set resistor)
• Vacuum Measurement
• Handheld Calibrators
• Solid State Reliability
STANDARD RANGES
Range psia psid psig
0 to 2 • •
0 to 5 • • •
0 to 15 • • •
0 to 30 • • •
0 to 50 • • •
0 to 100 • • •
1220
Standard
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PERFORMANCE SPECIFICATIONS
Supply Voltage: See application schematic
Ambient Temperature: 25°C (unless otherwise specified)
PARAMETERS MIN TYP MAX UNITS NOTES
Span 49.5 50 50.5 mV 1
Zero Pressure Output -2 2 mV 2
Pressure Non Linearity -0.1 ±0.05 0.1 %Span
Pressure Hysteresis -0.05 ±0.01 0.05 %Span
Input & Output Resistance 2500 4400 6000 Ω
Temperature Error – Span -0.5 ±0.3 0.5 %Span 3
Temperature Error – Zero -0.5 ±0.1 0.5 %Span 3
Thermal Hysteresis – Zero ±0.1 %Span 3
Supply Voltage Reference 1.235 V 1
Response Time (10% to 90%) 1.0 mS 4
Output Noise (10Hz to 1kHz) 1.0 µV p-p
Long Term Stability (Offset & Span) ±0.1 %Span 5
Pressure Overload 3X Rated 6
Compensated Temperature 0 50 °C
Operating Temperature -40 +125 °C
Storage Temperature -50 +150 °C
Weight 3 grams
Solder Temperature 250ºC Max 5 Sec.
Media Non-Corrosive Dry Gases Compatible with Silicon, Pyrex,
RTV, Ceramic, Nickel, Gold, and Aluminum
Notes
1. Refer to application schematic.
2. Best fit straight line.
3. Maximum temperature error between 0°C and 50°C with respect to 25°C. For 2psi devices, Temperature Error -- Zero is ±1.25%.
4. For a zero-to-full scale pressure step change.
5. Long term stability over a one year period with constant voltage and temperature.
6. 2X maximum for 100 psi device. 20psi maximum for 2 and 5 psi devices.
Application Schema
1220
Standard
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DIMENSIONS
CONNECTIONS
1220
Standard
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APPLICATION SCHEMATIC
ORDERING INFORMATION
1220 A - 015 G - 3 S
Model
Grade
Pressure Range
Type (G= Gage, A = Absolute, D = Differential)
Lead Configuration (1,3 - See Dimensions Diagram)
Pressure Tubes (L = Long, S = Short, N = None)
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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.
