SCC05D

SCC Series Pressure sensors FEATURES · · · 0...5 to 0...100 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 sensors 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 SenSym's standard low cost chip carrier "button" package, a plastic ported "N" 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 · APPLICATIONS · · · · · Pneumatic controls Automotive diagnostics Medical equipment Dental equipment Environmental controls Scale: 1 cm ½ inch sealed, epoxied, and/or clamped onto a pressure fitting. A closed bridge 4-pin SIP configuration is provided for electrical connection to the button package. The DIP package offer a 5-pin open bridge configuration. EQUIVALENT CIRCUIT Vs ELECTRICAL CONNECTION + Output GND out + +VS out - 1 2 3 4 P1 Button Sensor or "N" Package +Vs P2 1 out + GND +Vs 4 out vent hole out GND out + SCC.. button sensor 1 P1 4 +Vs out + GND 1 P1 P2 4 +Vs Vs +Vs out - +Vs Output SCCxxxGD2 DIP SCCxxxAD2 DIP SCCxxxD4 DIP + DIP Package The polarity indicated is for pressure applied to SCC.../SCC...N : P1 (forward gage) SCC...GD2 : P2 (backward gage) SCC...ASO/GSO : P1 (forward gage) SCC...AD2 : P1 (forward gage) SCC...DD4 : P2 (backward gage) July 2005 / 040 1/5 www.sensortechnics.com SCC Series Pressure sensors PRESSURE SENSOR CHARACTERISTICS Maximum ratings (for all devices) Supply current, IS Temperature ranges Compensated Operating Storage 1.5 mA 0 to +50°C -40 to +85°C -55 to +125°C Humidity Lead temperature (soldering 4 sec.) Common-mode pressure 0 to 100 %RH 250°C 150 psi PERFORMANCE CHARACTERISTICS (individual models) IS = 1.0 mA, TA = 25°C1 Operating pressure range 0 - 5 psid(g) 0 - 15 psia 0 - 15 psid(g) 0 - 30 psia 0 - 30 psid(g) 0 - 100 psia 0 - 100 psid(g) Part number SCC05(D,G) SCC15A SCC15(D,G) SCC30A SCC30(D,G) SCC100A SCC100(D,G) Proof pressure9 20 psi 30 psia 30 psi 60 psia 60 psi 150 psia 150 psi Accuracy2 0.50 0.50 0.50 0.50 0.50 0.50 0.50 % % % % % % % Effect on span3 (0 - 50°C) 1.50 1.50 1.50 1.50 1.50 1.50 1.50 % % % % % % % Effect on offset4 (0 - 50°C) 2.00 2.00 2.00 2.00 2.00 2.00 2.00 % % % % % % % Full-scale span1,5 (mV) 25 - 65 30 - 95 40 - 95 60 - 150 60 - 150 85 - 225 85 - 225 PERFORMANCE CHARACTERISTICS (all models) IS = 1.0 mA, TA = 25°C 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 mV ms kΩ kΩ Specification notes: 1. 2. Reference conditions: supply current = 1.0 mA, TA=25°C, common-mode line pressure = 0 psig, pressure applied to P1, unless otherwise noted. Accuracy is the sum of hysteresis and linearity. Hysteresis 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 25°C. This is the maximum temperature shift for span when measured between 0 and 50°C relative to the 25°C reading. Typical temperature coefficients for span and resistance are -2200 and +2200 ppm/°C respectively. This is the maximum temperature shift for offset when measured between 0 and 50°C relative to the 25°C 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 0 to 50°C after: a) 100 temperature cycles, 0 to 50°C. 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. If the proof pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die may fracture. Note: The proof pressure for the forward gage of all devices in the D4-package is the specified value or 100 psi whatever is less. The SCC100D (button package) can be used in forward gage mode only when the pressure doesn't exceed 30 psi, or no special care ist taken. 3. 4. 5. 6. 7. 8. 9. 2/5 July 2005 / 040 www.sensortechnics.com SCC Series Pressure sensors PHYSICAL DIMENSIONS Button package mass: 1 g dimensions in inches (mm) Basic sensor DIP "D2" package mass: 1 g dimensions in inches (mm) July 2005 / 040 3/5 www.sensortechnics.com SCC Series Pressure sensors PHYSICAL DIMENSIONS (cont.) Basic sensor DIP "D4" package 0.550 (13.97) P1 P2 0.050 typ. (1.27) 0.470 (11.94) 0.135 (3.43) 0.250 (6.35) 0.090 typ. (2.29) 0.300 (7.62) 0.285 (7.24) 0.380 (9.65) 0.070 (1.78) 0.600 (15.24) 0.01 (0.25) 0.110 typ. (2.79) 0.020 typ. (0.51) 0.100 typ. (2.54) mass: 1 g dimensions in inches (mm) N package mass: 5 g dimensions in inches (mm) 4/5 July 2005 / 040 www.sensortechnics.com SCC Series Pressure sensors ORDERING INFORMATION Part number Pressure range Button p ackag e S C C 15A S C C 30A S C C 100A " N " p ackag e S C C 15A N S C C 30A N S C C 100A N DIP package single port S C C 15A D 2 S C C 30A D 2 S C C 100A D 2 SCC05GD2 use differential devices use differential devices SCC15GD2 SCC30GD2 SCC100GD2 S C C 05D S C C 15D S C C 30D S C C 100D S C C 05D N S C C 15D N S C C 30D N S C C 100D N S C C 05D D 4 S C C 15D D 4 S C C 30D D 4 S C C 100D D 4 DIP package dual port 0...15 psi Absolute pressure 0...30 psi 0...100 psi 0...5 psi Gage pressure 0...15 psi 0...30 psi 0...100 psi 0...5 psi Differential pressure 0...15 psi 0...30 psi 0...100 psi 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. July 2005 / 040 5/5 www.sensortechnics.com