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ASDX Series
0 to 1 psi through 0 to 100 psi Pressure Transducers
APPLICATIONS
Medical Instrumentation Barometry HVAC Controls Pneumatic Controls
FEATURES
Piezoresistive Sensor Precision ASIC Conditioning High Level Output Temperature Compensated
This ASDX series is an amplified version of SenSym ICT's proven performer and industry leading SDX series sensor. This amplified ASDX device is in a package with the slightly larger footprint as the SDX but it offers a high level (4.0 V span) output on a very cost effective 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 psi (ASDX01DN) through 100 psi (ASDX100). 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. All ASDX devices are accurate to within +/- 2.0%. The devices are characterized for operation from a single 5 volt supply. The sensor is designed and manufactured according to standards laid down in ISO 9001. Contact your local SenSym ICT representative or the factory for additional details.
0 TO 1 PSI THROUGH 0 TO 100 PSI PRESSURE TRANSDUCERS SenSym ICT
0 TO 1 PSI THROUGH 0 TO 100 PSI PRESSURE TRANSDUCERS SenSym ICT
ASDX Series BLOCK DIAGRAM
+Vs
Microcontroller
C
220nF(7)
D/A OUT
MUX
A/D
ASIC
GND
ELECTRICAL CONNECTIONS(8)
Pin Out
Vs (PIN 1) IDENTIFIER Vs (PIN 1) IDENTIFIER Vs (PIN 1) IDENTIFIER
N/C N/C N/C N/C
+Vs Vout GND N/C
+Vs Vout GND N/C
N/C N/C N/C N/C
N/C N/C N/C N/C
+Vs Vout GND N/C
ASDXxxxD4
ASDXxxxG2
ASDXxxxA2
MAXIMUM RATINGS
Supply Voltage (Vs)* Maximum Supply Voltage* Consumption Current Output Current - sink Output Current - source Lead Temperature (2-4 Sec.) 4.75V to 5.25Vdc 6.50 Vdc (max.) 6 mA (typ) 2 mA (max.) 2 mA (max.) 250C
*Note: The sensor is not reverse polarity protected. Incorrect application of excitation voltage or ground to the wrong pin can cause electrical failure. Application of supply voltage above the maximum can cause electrical failure.
ENVIRONMENTAL SPECIFICATIONS (ALL DEVICES)
Temperature Ranges: Compensated: 0C to + 85C Operating: -20C to +105C Storage: -40C to +125C Vibration: 10G at 20-2000 Hz Shock: 50G for 11 ms Life: 1 Million cycles minimum
ASDX Series S P E C I F I C AT I O N NOTES
Note 1: Reference Conditions (unless otherwise noted): Supply voltage, VS=5.0 0.01 Vdc; Ta=25C. Output is ratiometric within the supply voltage range (Vs). Note 2: Span is the algebraic difference between the output voltage at the specified pressure and the output at zero pressure. Span is ratiometric to the supply voltage. Note 3: Accuracy is the combined errors 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. Note 4: Response time for a 0 psi to full scale pressure step change, 10% to 90% rise time. Note 5: If maximum burst pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die may fracture. Note 6: The smallest change in the output voltage, given any change in pressure. Note 7: Capacitor 220nF required between +Vs and GND pin. Note 8: Pins 4, 5, 6, 7 and 8 are internal device connections and should not be connected to external circuitry or ground.
PRESSURE RANGE SPECIFICATIONS
SenSym Part No. ASDX001 ASDX005 ASDX015 ASDX030 ASDX100 Pressure Range 0 - 1 PSI 0 - 5 PSI 0 - 15 PSI 0 - 30 PSI 0 - 100 PSI Burst Pressure(5) 20 PSI 20 PSI 30 PSI 60 PSI 150 PSI Sensitivity 4.00 V/PSI 0.80 V/PSI 0.267 V/PSI 0.133 V/PSI 0.040 V/PSI
PERFORMANCE CHARACTERISTICS(1)
Characteristic Zero Pressure Offset Full Scale Span(2) Output at FS Pressure Accuracy(3) Response Time(4) Quantization Step(6) Symbol Min Voff 0.420 Vfss Vfso 4.420 - - - - 8 3 Typ 0.500 4.00 4.500 - Max 0.580 4.580 2.0 - - Units V V V %Vfss ms mV
PRESSURE TRANSDUCER PERFORMANCE CHARACTERISTICS
Error Band Multiplier Over -20C to +105C
Temperature Multiplier
1.5
1
0.5
0 -40.0
-20.0
0.0
20.0
40.0 Temperature (C)
60.0
80.0
100.0
120.0
0 TO 1 PSI THROUGH 0 TO 100 PSI PRESSURE TRANSDUCERS SenSym ICT
0 TO 1 PSI THROUGH 0 TO 100 PSI PRESSURE TRANSDUCERS SenSym ICT
ASDX Series
0 to 1 psi through 0 to 100 psi Pressure Transducers
PHYSICAL DIMENSIONS
D4 Package
0.665 0.050 typ 0.550 0.090 typ .665 0.310 typ .050 typ .550 0.133 0.143 0.320 0.070 .655.025 0.325 typ 0.165 0.100 typ
.315
G2 Package
A2 Package
.124 0.333 .050 typ .193 0.275 .550 .177 .100 typ
.350 .655.025
.665
.655.025
.177
.100 typ
0.350
.350
.200
0.090 typ
0.105
SenSym ICT reserves the right to make changes to any products herein. SenSym ICT does 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.
ORDERING INFORMATION - PART # DESCRIPTION
ASDX xxx XX 4X
SenSym ICT Pressure Transducer Pressure Range (psi) =0-1 D, G =0-5 D, G = 0 - 15 D, G, A = 0 - 30 D, G, A = 0 - 100 D, G, A
001 005 015 030 100
Device Output: 4R= 0.5 - 4.5Vdc 4D* 4H* 4M* Package Style and Type
A2 = DIP Package, Absolute D4 = DIP Package, Differential D2, G2 = DIP Package, Gage
*) Contact factory for additional information 4D* -> 2.5 2Vdc 4H* -> 0.25 - 4.25Vdc 4M* -> 0.2 - 4.7Vdc
For example: Part #ASDX015A24R = ASDX device , 15psi absolute, A2 Package, 0.5 - 4.5V Output
To order, use the following part number(s) Pressure Range 0 - 1 PSI 0 - 5 PSI 0 - 15 PSI 0 - 30 PSI 0 - 100 PSI Absolute - - ASDX015A24R ASDX030A24R ASDX100A24R Gage ASDX001G24R ASDX005G24R ASDX015G24R ASDX030G24R ASDX100G24R Differential/Gage ASDX001D44R ASDX005D44R ASDX015D44R ASDX030D44R ASDX100D44R
1 408 954 6700 FAX: 408 954 9458 SenSym ICT 1804 McCarthy Boulevard Milpitas, CA 95035 www.pressure.invensys.com

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