ASDXL Series Pressure transducers FEATURES GENERAL DESCRIPTION · 0...±5, 0...±10, 0...10 "H2O differential/gage · 0.5...4.5 V ratiometric output · Precision ASIC conditioning · Temperature compensated The amplified ASDXL series offers a high level output (4.0 V or ±2.0 V span respectively) on a very cost-effective basis. This family is fully calibrated and temperature compensated using an on-board ASIC. The sensors are intended for use with non-corrosive, non-ionic working fluids such as air and dry gases. The ASDXL10D44R device is available to measure gage pressure from 0...10 "H2O and offers 4 V span. The ASDXL...4D devices are available to measure differential pressures from 0...±5 "H 2 O (ASDXL05D44D) to 0...±10 "H 2O (ASDXL10D44D) and offer ±2.0 V span. Differential devices allow application of pressure to either side of the sensing diaphragm and can be used for gage or differential measurements. APPLICATIONS · Medical instrumentation · HVAC controls · Pneumatic controls All ASDXL devices are accurate to within ±2.5 %FSS. The devices are characterized for operation from a single 5 V supply. The sensor is designed and manufactured according to standards laid down in ISO9001. ELECTRICAL CONNECTION N/C 5 6 7 1 ASDXL 2 +Vs Note: 220 nF Vout 15 nF 3 8 4 GND Capacitor 220 nF required between +Vs and GND and 15 nF between Vout and GND. It is important to place the capacitors as close to the pins as possible! Pins 4, 5, 6, 7 and 8 are internal device connections and should not be connected for any reason! N/C January 2009 / 555 1/4 www.sensortechnics.com ASDXL Series Pressure transducers PRESSURE SENSOR CHARACTERISTICS Maximum ratings Supply voltage VS Environmental specifications 4.75 V to 5.25 VDC max 6.50 VDC Output current Sink Source 2 mA 2 mA Lead temperature (2 - 4 sec.) 0 to +85 °C -20 to +105°C -40 to +125 °C Vibration: 250 °C Common mode pressure Caution! Temperature ranges Compensated Operating Storage 10 g at 20 - 2000 Hz Shock: 50 psi 50 g for 11 ms The sensor is not reverse polarity protected. Incorrect applications of excitation voltage or ground to the wrong pin can cause electrical failure. Application of supply voltage above the maximum can cause electrical failure. PRESSURE RANGES SPECIFICATIONS (VS = 5.0 VDC, TA = 25°C) Part number Pressure range A S D X L05D 44D 0...±5 A S D X L10D 44D 0...±10 A S D X L10D 44R 0...10 Burst pressure1 3 "H2O 3 3 Sensitivity (typ.) 0.400 p si 0.200 V/"H2O 0.400 Specification notes: 1. If maximum burst pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die may fracture. 2. Full Scale Span (FSS) is the algebraic difference between the output signal for the highest and lowest specified pressure. Span is ratiometric to the supply voltage. 3. Total accuracy is the combined error from offset and span calibration, linearity, pressure hysteresis, and temperature effects. Linearity is the measured deviation based on a straight line. Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure. Calibration errors include the deviation of offset and full scale from nominal values. 4. Delay time between sampling and signal change at the output. 5. The smallest change in the output voltage, given any change in pressure. January 2009 / 555 2/4 www.sensortechnics.com ASDXL Series Pressure transducers PERFORMANCE CHARACTERISTICS 0.5 to 4.5 V ratiometric output (VS = 5.0 VDC, TA = 25°C) ASDXL...D44D Characteristics Zero pressure offset Min. Typ. Max. 2.40 2.50 2.60 2 4.00 Full scale span (FSS) Output at max. specified pressure 4.40 4.50 4.60 at min. specified pressure 0.40 0.50 0.60 Total accuracy (0 to 85 °C)3 ±2.5 Sample rate 100 4 V %FSS Hz 2.73 Response delay Units 14.11 ms Quantization step5 3 mV Current consumption 6 mA ASDXL10D44R Characteristics Zero pressure offset Min. Typ. Max. 0.40 0.50 0.60 2 4.00 Full scale span (FSS) Full scale output 4.40 4.50 Total accuracy (0 to 85 °C)3 V 4.60 ±2.5 Sample rate 100 4 Quantization step 5 Current consumption %FSS Hz 2.73 Response delay Units 14.11 ms 3 mV 6 mA ELECTRICAL CONNECTION Vs (pin 1) identifier N/C N/C N/C N/C January 2009 / 555 +Vs Vout GND N/C Note: Pins 4, 5, 6, 7 and 8 are internal device connections and should not be connected for any reason! 3/4 www.sensortechnics.com ASDXL Series Pressure transducers PHYSICAL DIMENSIONS 1.27 typ (0.050 typ) 16.89 (0.665) 7.87 typ (0.310 typ) 13.97 (0.550) 3.63 (0.143) High pressure port 2.29 (0.090) 3.38 (0.133) 8.13 8.89 (0.350) (0.320) 8.26 typ (.325 typ) 1.78 (0.070) 16.64 ±0.64 (0.655 ±0.025) third angle projection Low pressure port 0.51 typ (0.02 typ) 2.54 typ (0.100 typ) 4.5 (0.177) dimensions in mm (inches) ORDERING INFORMATION Pressure range Differential/Gage 0...±5 "H2O A S D X L05D 44D 0...±10 "H2O A S D X L10D 44D 0...10 "H2O A S D X L10D 44R Other pressure ranges or calibrations are available on request 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 2009 / 555 4/4 www.sensortechnics.com