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| SCC SERIES Pressure Sensors FEATURES * 0 - 5 to 0 - 300 psi * Low Cost Sensor Element * Internal Temperature Compensation * Differential, Gage and Absolute GENERAL DESCRIPTION The SCC series offer an extremely low cost sensor element with a temperature stable output when driven with a constant current source. These integrated circuit sen-sors were designed for extremely cost sensitive applications where precise accuracy over a wide temperature range is not required. This series is intended for use with non-corrosive, non-ionic working fluids such as air and dry gases. Absolute devices have an internal vacuum reference and an output voltage proportional to applied pressure. The differential devices allow application of pressure to either side of the diaphragm and the devices are thereby available to measure both differential and/or gage pressures. This product is packaged either in SenSyms standard low cost chip carrier "button" package, a plastic ported "N" package, a metal package or a dual inline package (DIP). All packages are designed for applications where the sensing element is to be integral to the OEM equipment. These packages can be O-ring sealed, epoxied, and/or clamped onto a pressure fitting. A closed bridge four-pin SIP configuration is APPLICATIONS * Pneumatic Controls * Automotive Diagnostics * Medical Equipment * Dental Equipment * Environmental Controls Scale: 1cm 1/2 inch provided for electrical connection to the button package. The TO can and the DIP offer a 5-pin open bridge configuration. EQUIVALENT CIRCUIT Vs ELECTRICAL CONNECTIONS GND 1 out + 2 +VS 3 out - 4 + Output SCC.. Button Sensor +Vs 1 out + GND +Vs 4 out vent hole TO Can (buttom view) 1 +Vs out + GND 1 P1 P2 4 +Vs +Vs Button Sensor or "N" Package out GND out + 4 +Vs out - Vs SCCxxxGD2 DIP SCCxxxAD2 DIP SCCxxxD4 DIP Output The polarity indicated is for pressure applied to SCC.../SCC...N : P1 (forward gage) SCC...ASO/GSO : P1 (forward gage) SCC...DD4 : P2 (backward gage) SCC...GD2 SCC...AD2 : : P2 P1 (backward gage) (forward gage) + (Open Bridge) TO Can or DIP Package January 1998/040 Aubinger Weg 27, 82178 Puchheim, Germany Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33 http://www.sensortechnics.com SCC SERIES Pressure Sensors PRESSURE SENSOR CHARACTERISTICS Maximum Ratings (For All Devices) Supply Current, IS Temperature Ranges Compensated Operating Storage Humidity Lead Temperature (soldering 4 sec) Common-Mode Pressure 1.5 mA 0C to +50C -40C to +85C -55C to +125C 0 to 100 %RH 250C 150 psi Performance Characteristics (Individual Models) IS = 1.0 mA, TA = 25C1 Part Number SCC05(D,G) SCC15A SCC15(D,G) SCC30(A,D,G) SCC100A SCC100(D,G)9 SCC300A Operating Pressure Range 0-5 psid(g) 0-15 psia 0-15 psid(g) 0-30 psid(g) 0-100 psia 0-100 psig 0-300 psia Maximum Over Pressure 20 psi 30 psia 30 psi 60 psi 150 psia 150 psig 450 psia Accuracy2 0.50% 0.50% 0.50% 0.50% 0.50% 0.50% 0.50% Effect On Span3 (0C-50C) 1.50% 1.50% 1.50% 1.50% 1.50% 1.50% 1.50% Effect On Offset4 (0C-50C) 2.00% 2.00% 2.00% 2.00% 2.00% 2.00% 2.00% Full-Scale Span5 (mV) 25-65 30-95 40-95 60-150 85-225 85-225 50-120 Performance Characteristics (All Models) IS = 1.0 mA, TA = 25C Characteristics Zero Pressure Offset Combined, Linearity, Hysteresis, Repeatability2 Temperature Effect on Span3, 8 Temperature Effect on Offset4,8 Long Term Stability of Offset and Span6 Response Time (10% to 90%)7 Input Impedance Output Impedance Min. -30.0 ----------4.00 4.00 Typ. -10 0.25 0.25 0.50 0.10 0.10 5.00 5.00 Max. 20.0 0.50 1.50 2.00 ----6.50 6.50 Unit mV %FSO %FSO %FSO %FSO mSec k k Specification Notes: 1: 2: 3: 4: 5: 6: Reference Conditions: Supply Current = 1.0 mA, TA=25C, Common-mode Line Pressure = 0 psig, Pressure Applied to P1, unless otherwise noted. Accuracy is the sum of Hysterisis and Linearity. Hysterisis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure. Linearity refers to the best straight line fit as measured for the offset, full-scale and 1/2 full-scale pressure at 25C. This is the maximum temperature shift for span when measured between 0C and 50C relative to the 25C reading. Typical temperature coefficients for span and resistance are -2200 ppm/C and +2200 ppm/C respectively. This is the maximum temperature shift for offset when measured between 0C and 50C relative to the 25C reading. Span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure. Maximum difference in output at any pressure with the operating pressure range and temperature within 0C to 50C after: a) 100 temperature cycles, 0C to 50C b) 1.0 million pressure cycles, 0 psi to full-scale span Response time for a 0 psi to full-scale span pressure step change. 10% to 90% rise time Temp effect on span and offset are guaranteed by design. Therefore these parameters are not 100% tested. The SCC100D devices can only be used in a forward gauge mode. Application of more than 30 psig to the back side of any of the SCC Series devices can result in device failure. 7: 8: 9: January 1998/040 Aubinger Weg 27, 82178 Puchheim, Germany Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33 http://www.sensortechnics.com SCC SERIES Pressure Sensors PHYSICAL DIMENSIONS Button Package Basic Sensor DIP "D2" Package January 1998/040 Aubinger Weg 27, 82178 Puchheim, Germany Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33 http://www.sensortechnics.com SCC SERIES Pressure Sensors PHYSICAL DIMENSIONS (cont.) Basic Sensor DIP "D4" Package N Package January 1998/040 Aubinger Weg 27, 82178 Puchheim, Germany Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33 http://www.sensortechnics.com SCC SERIES Pressure Sensors PHYSICAL DIMENSIONS (cont.) AHO Package (TO-5) GSO Package (TO-39) ORDERING INFORMATION Pressure Range Absolute Pressure 0 - 15 psi 0 - 30 psi 0 - 100 psi 0 - 300 psi Gage Pressure 0 - 5 psi 0 - 15 psi 0 - 30 psi 0 - 100 psi Differential Pressure 0 - 5 psi 0 - 15 psi 0 - 30 psi 0 - 100 psi(9) Button Package "N" Package Order Part Number TO Package DIP Package single port SCC15AHO SCC30AHO SCC100AHO SCC300AHO SCC05GSO SCC15GSO SCC30GSO ----------SCC15AD2 SCC30AD2 SCC100AD2 DIP Package Dual port ----------------SCC05DD4 SCC15DD4 SCC30DD4 SCC100DD4 SCC15A SCC30A SCC100A --use differential devices SCC15AN SCC30AN SCC100AN --use differential devices SCC05GD2 SCC15GD2 SCC30GD2 ----------- SCC05D SCC15D SCC30D SCC100D SCC05DN SCC15DN SCC30DN SCC100DN SenSym and Sensortechnics reserve the right to make changes to any products herein. SenSym and Sensortechnics do not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. January 1998/040 Aubinger Weg 27, 82178 Puchheim, Germany Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33 http://www.sensortechnics.com |
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