ASDX Series Signal conditioned pressure transducers FEATURES GENERAL DESCRIPTION · 0...1 to 0...100 psi, 0...±1 to 0...±100 psi · Absolute, gage or differential pressure · 0.5...4.5 V ratiometric output · Precision ASIC conditioning · Temperature compensated The amplified ASDX offers a high level (4.0 V span) output on a very costeffective basis. This family is fully calibrated and temperature compensated using an on-board ASIC. These sensors are intended for use with non-corrosive, non-ionic working fluids such as air and dry gases. Devices are available to measure absolute, differential, and gage pressures from 1 to 100 psi. The absolute devices have an internal vacuum reference and an output voltage proportional to absolute pressure. 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 · Barometry · HVAC controls · Pneumatic controls All ASDX devices are accurate to within ±2.0 %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 ISO 9001. ELECTRICAL CONNECTION N/C 5 6 7 1 ASDX 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 February 2009 / 530 1/6 www.sensortechnics.com ASDX Series Signal conditioned pressure transducers PRESSURE SENSOR CHARACTERISTICS Environmental specifications Maximum ratings Supply voltage VS Output current Sink Source Lead temperature (2 - 4 sec.) Caution! Temperature ranges Compensated Operating Storage 4.75 V to 5.25 VDC max. 6.50 VDC 2 mA 2 mA 0 to +85 °C -20 to +105 °C -40 to +125 °C Vibration: 250 °C 10 g at 20 - 2000 Hz Shock: 100 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 Burst pressure1 30 Sensitivity (typ.) A S D X 015A 24R 0 to 15 A S D X 030A 24R 0 to 30 A S D X 100A 24R 0 to 100 150 0.040 ASDX001G24R / D44R 0 to 1 5 4.00 ASDX005G24R / D44R 0 to 5 20 0.80 ASDX015G24R / D44R 0 to 15 30 0.267 ASDX030G24R / D44R 0 to 30 60 0.133 ASDX100G24R / D44R 0 to 100 psi(a) 60 0.267 psi(a) 150 psi(g,d) 0.133 0.040 psi(g,d) A S D X 001D 44D 0 to ±1 5 2.00 A S D X 005D 44D 0 to ±5 20 0.40 A S D X 015D 44D 0 to ±15 30 0.133 A S D X 030D 44D 0 to ±30 60 0.067 A S D X 100D 44D 0 to ±100 150 0.020 February 2009 / 530 V/psi 2/6 www.sensortechnics.com ASDX Series Signal conditioned pressure transducers PERFORMANCE CHARACTERISTICS 0.5 to 4.5 V ratiometric output (VS = 5.0 VDC, TA = 25°C) All ASDX...A24R, ...G24R, ...D44R Characteristics Zero pressure offset Min. Typ. Max. 0.42 0.50 0.58 Full scale span (FSS)2 V 4.00 Full scale output 4.42 4.50 Total accuracy (0 to 85°C)3 4.58 ±2.0 Sample rate 100 Response delay4 2.73 Units %FSS Hz 14.11 ms Quantization step5 3 mV Current consumption 6 mA All ASDX...D44D Characteristics Zero pressure offset Min. Typ. Max. 2.42 2.50 2.58 Full scale span (FSS)2 Units 4.00 V Output at max. specified pressure 4.42 4.50 4.58 at min. specified pressure 0.42 0.50 0.58 Total accuracy (0 to 85°C)3 ±2.0 Sample rate 100 Response delay4 2.73 %FSS Hz 14.11 ms Quantization step5 3 mV Current consumption 6 mA February 2009 / 530 3/6 www.sensortechnics.com ASDX Series Signal conditioned pressure transducers Total accuracy (%FSS) TOTAL ACCURACY (-20 to +105°C) 3.0 2.0 1.0 0 -1.0 -2.0 -3.0 -20 0 20 40 60 85 105 Temperature (°C) 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. February 2009 / 530 4/6 www.sensortechnics.com ASDX Series Signal conditioned pressure transducers PHYSICAL DIMENSIONS D4 package 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) Low pressure port 0.51 typ (0.02 typ) 1.78 (0.070) 2.54 typ (0.100 typ) 16.64 ±0.64 (0.655 ±0.025) 4.5 (0.177) 6.99 (0.275) G2 package 3.15 (0.124) 1.27 typ (0.050 typ) 13.97 (0.550) 16.89 (0.665) 4.9 (0.193) 2 ° typ 1.19 typ (0.047 typ) 2.29 typ (0.090 typ) 2.79 typ (0.11 typ) 8.89 5.08 (0.350) (0.200) 0.51 typ (0.02 typ) 16.64 ±0.64 (0.655 ± 0.025) 4.5 (0.177) 2.54 typ (0.100 typ) A2 package 16.89 (0.665) 8.46 (0.333) 1.27 typ (0.050 typ) 13.97 (0.550) 2.29 typ (0.090 typ) 8.0 typ (0.315 typ) 8.89 (0.350) 16.64 ±0.64 (0.655 ±0.025) third angle projection February 2009 / 530 4.5 (0.177) 0.51 typ (0.02 typ) 2.54 typ (0.100 typ) dimensions in mm (inches) 5/6 www.sensortechnics.com ASDX Series Signal conditioned pressure transducers ELECTRICAL CONNECTIONS ASDX...D4... ASDX...G24R Vs (pin 1) identifier Vs (pin 1) identifier +Vs Vout GND N/C N/C N/C N/C N/C +Vs Vout GND N/C ASDX...A24R N/C N/C N/C N/C Vs (pin 1) identifier N/C N/C N/C N/C Note: Pins 4, 5, 6, 7 and 8 are internal device connections and should not be connected for any reason! +Vs Vout GND N/C ORDERING INFORMATION Pressure range Absolute Gage Differential/Gage 0 to 1 psi ASDX001G24R A S D X 001D 44R 0 to 5 psi ASDX005G24R A S D X 005D 44R 0 to 15 psi A S D X 015A 24R ASDX015G24R A S D X 015D 44R 0 to 30 psi A S D X 030A 24R ASDX030G24R A S D X 030D 44R 0 to 100 psi A S D X 100A 24R ASDX100G24R A S D X 100D 44R 0 to ±1 psi A S D X 001D 44D 0 to ±5 psi A S D X 005D 44D 0 to ±15 psi A S D X 015D 44D 0 to ±30 psi A S D X 030D 44D 0 to ±100 psi A S D X 100D 44D 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. February 2009 / 530 6/6 www.sensortechnics.com