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| MODEL 1220 PC Board Mountable Pressure Sensor 0-50 mV Output Gage, Differential and Absolute Temperature Compensated * * * * * * Process Control Medical Instrumentation HVAC Barometric Pressure Air Flow Management Avionics DESCRIPTION The Model 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. Integral temperature compensation is provided over a range of 0-50C using laser-trimmed resistors. An additional laser-trimmed resistor is included to normalize pressure sensitivity variations by setting the current drive to the sensor bridge, resulting in an interchangeability of 1% prior to amplification. Gage, absolute, and differential pressure ranges from 0-2 PSI to 0-100 PSI are available. Multiple lead and tube configurations are also available for customizing the package for specific 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 gain set resistor as opposed to a current set resistor, please refer to the Model 1210. Pressure FEATURES * Dual-in-line Package * 0.1% Non-linearity * 0.5% Temperature Performance * 1.0% Interchangeable Span (provided by gain set resistor) * Solid State Reliability * Low Power STANDARD RANGES Range 0 to 2 0 to 5 0 to 15 0 to 30 0 to 50 0 to 100 psia psid psig DIMENSIONS * * * * * * * * * * * * * * * * * 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 1-17 P r e s s u r e S e l e c t i o n G u i d e - H I Ts - S t a n d a r d PC Board Mountable Pressure Sensor MODEL 1220 PERFORMANCE SPECIFICATIONS Supply Voltage: See application schematic. Ambient Temperature: 25C (Unless otherwise specified) PARAMETERS MIN TYP MAX UNITS NOTES __________________________________________________________________________________________________________________________________________________ Full Scale Output Span 49.5 50.0 50.5 mV 1 __________________________________________________________________________________________________________________________________________________ Zero Pressure Output 2 mV 2 __________________________________________________________________________________________________________________________________________________ Pressure Non-linearity 0.05 0.1 % Span 3 __________________________________________________________________________________________________________________________________________________ Pressure Hysteresis 0.01 0.1 % Span __________________________________________________________________________________________________________________________________________________ Input & Output Resistance 2500 4400 6000 __________________________________________________________________________________________________________________________________________________ Temperature Error - Span 0.3 0.5 % Span 2, 4 __________________________________________________________________________________________________________________________________________________ Temperature Error - Zero 0.1 0.5 % Span 1, 2, 4 __________________________________________________________________________________________________________________________________________________ Thermal Hysteresis - Zero 0.1 % Span __________________________________________________________________________________________________________________________________________________ Supply Current 2.0 mA __________________________________________________________________________________________________________________________________________________ Response Time 1.0 msec 5 __________________________________________________________________________________________________________________________________________________ Output Noise 1.0 V p-p 6 __________________________________________________________________________________________________________________________________________________ Output Load Resistance 2 M 7 __________________________________________________________________________________________________________________________________________________ Insulation Resistance (50 VDC) 50 M __________________________________________________________________________________________________________________________________________________ Pressure Overload 3X Rated 8 __________________________________________________________________________________________________________________________________________________ Operating Temperature -40C to +125C __________________________________________________________________________________________________________________________________________________ Storage Temperature -50C to +150C __________________________________________________________________________________________________________________________________________________ Media Non-corrosive Gases Compatible with Wetted Materials 9 __________________________________________________________________________________________________________________________________________________ Weight 3 grams Notes 1. For 2 psi output on a 5 psi sensor span is 20.0 mV 1%, amplified span is 1.232V and TC zero temperature error is 1.25%. 2. Compensation resistors are an integral part of the sensor package; no additional external resistors are required. Pins 7 and 8 must be kept open. 3. Best Fit Straight Line. 4. Temperature range: 0-50C in reference to 25C. 5. For a zero-to-full scale pressure step change. 6. 10 Hz to 1 kHz. 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: 250C 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 Dimensions drawing for lead configurations. CONNECTIONS ORDERING INFORMATION 1220 A - 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 Grade Model APPLICATION SCHEMATIC Nov 2002 P r e s s u r e S e l e c t i o n G u i d e - H I Ts - S t a n d a r d 1-18 Pressure |
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