Model 1220 Process Control PC Board Mountable Pressure Sensor Medical Instrumentation 0-50 mV Output HVAC Gage, Differential and Absolute Barometric Pressure Temperature Compensated 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 0-50°C using laser-trimmed resistors. An additional lasertrimmed 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 FEATURES products with operating pressures less than 0-2 PSI. For a Dual-in-line Package compensated sensor using a gain set resistor as opposed to a ±0.1% Non-linearity current set resistor, please refer to the Model 1210. ±0.5% Temperature Performance DIMENSIONS 1.0% Interchangeable Span (provided by current set resistor) Solid State Reliability Low Power STANDARD RANGES Range psia 0 to 2 1-16 psid psig ● ● 0 to 5 ● ● ● 0 to 15 ● ● ● 0 to 30 ● ● ● 0 to 50 ● ● ● 0 to 100 ● ● ● HITs – Standard Model 1220 PC Board Mountable Pressure Sensor PERFORMANCE SPECIFICATIONS Supply Voltage: See application schematic Ambient Temperature: 25°C (Unless otherwise specified) PARAMETERS MIN TYP MAX UNITS NOTES Full Scale Output Span 49.5 50.0 50.5 mV 1 2 ±mV 2 3 Zero Pressure Output Pressure Non-linearity 0.05 0.1 ±% Span Pressure Hysteresis 0.01 0.1 ±% Span 4400 6000 Ω 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 Input & Output Resistance 2500 Supply Current ±% Span 2.0 mA 5 Response Time 1.0 msec 6 Output Noise 1.0 µV p-p 7 2 MΩ 8 50 MΩ Output Load Resistance Insulation Resistance (50 VDC) Pressure Overload 3X Operating Temperature -40°C to +125°C Storage Temperature -50°C to +150°C Rated Weight 3 Grams Media Non-corrosive Gases Compatible with Wetted Materials Notes 1. For 2 psi output span is 20.0 mV ± 1%, amplified span is 1.232V and TC zero temperature error is ±1.25%. 2. 9 10 8. Prevents increase of TC-Span due to output loading. 9. 3X or 200 psi maximum, whichever is less. 20 psi for 2 psi and 5 psi versions. Compensation resistors are an integral part of the sensor package; no additional external resistors are required. Pins 7 and 8 must be kept open. 10. Wetted materials are glass, ceramic, silicon, RTV, nickel, gold, and aluminum. 3. Best Fit Straight Line. 11. Soldering of lead pins: 250°C for 5 seconds maximum. 4. Temperature range: 0-50°C in reference to 25°C. 12. Tube length: L=470 ± 5 mil, S=300 ± 3 mil, N=no tube. 5. Guarantees input/output ratiometricity. 6. For a zero-to-full scale pressure step change. 13. Lead pins can either be in the same or the opposite direction as the pressure tube. See Dimensions drawing for lead configurations. 7. 10 Hz to 1 kHz. 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 June 2001 HITs – Standard Feel free to contact customer service with any questions at Toll free 1(800)745-8008; Phone (757)766-1500; Fax (757)766-4297 1-17