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.)
250°C
*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:
0°C to + 85°C
Operating: -20°C to +105°C
Storage: -40°C to +125°C
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=25°C.
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
Vfss
Vfso
–
0.420
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 -20°C to +105°C
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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