Honeywell ASDXAVX025MGSA3 Low pressure and ultra-low pressure digital output,2 total error band, 10 inches h20 to 100 psi Datasheet

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DESCRIPTION
The ASDX Series is a Silicon Pressure Sensor offering either
an I2C or SPI digital interface for reading pressure over the
specified full scale pressure span and temperature range.
The ASDX is fully calibrated and temperature compensated for
sensor offset, sensitivity, temperature effects and non-linearity
using an on-board Application Specific Integrated Circuit
(ASIC). Calibrated output values for pressure are updated at
approximately 1 kHz.
The standard ASDX is calibrated over the temperature range
of 0 °C to 85 °C [32 °F to 185 °F]. The sensor is characterized
for operation from a single power supply of either 3.3 Vdc or
5.0 Vdc.
FEATURES
Output options: I2C- or SPI-compatible 12-bit digital
Precision ASIC conditioning and temperature
compensated over 0 °C to 85 °C [32 °F to 185 °F]
temperature range
Low operating voltage
Absolute, differential and gage types
Pressure ranges from 10 inches H20 to 100 psi
Standard calibrations in inches H20, cm H20, psi, mbar,
bar, kPa
Total error band of ±2.0% of full scale span maximum
RoHS compliant
These sensors are available to measure absolute, differential
and gage pressures. The absolute versions have an internal
vacuum reference and an output value proportional to absolute
pressure. Differential versions allow application of pressure to
either side of the sensing diaphragm. Gage versions are
referenced to atmospheric pressure and provide an output
proportional to pressure variations from atmosphere.
The ASDX Series sensors are intended for use with noncorrosive, non-ionic working fluids such as air and dry gases.
They are designed and manufactured according to standards
in ISO 9001.
POTENTIAL APPLICATIONS
Flow calibrators
Ventilation and air flow monitors
Gas flow instrumentation
Sleep apnea monitoring and therapy equipment
Barometry
Pneumatic controls
HVAC
Table 1. Absolute Maximum Ratings1
Parameter
Supply voltage (Vsupply)
Voltage to any pin
Digital clock frequency:
I2 C
SPI
ESD susceptibility (human body model)
Storage temperature
Lead temperature (2 s to 4 s)
External capacitance between Vsupply and ground2
Table 2. Operating Specifications
Parameter
Supply voltage: (Vsupply)3
3.3 Vdc
5.0 Vdc
Min
-0.3
-0.3
Max
6.0
Vsupply + 0.3
Unit
Vdc
Vdc
100
50
3
-50 [-58]
100
400
800
125 [257]
250 [482]
470
kHz
kV
°C [°F]
°C [°F]
nF
Min.
Typ.
Max.
Unit
3.0
4.75
3.34
5.04
3.6
5.25
Vdc
Sensors are either 3.3 Vdc or 5.0 Vdc per the Order Guide (see Figure 1).
Supply current
Compensated temperature range5
Operating temperature range6
Overpressure7
Burst pressure8
Startup time (power up to data ready)
Response time
I2C or SPI voltage level low
I2C or SPI voltage level high
Pull-up on SDA and SCL (I2C output only)
Total error band9
Output resolution
Table 3. Environmental Specifications
Parameter
Humidity
Vibration
Shock
Life
Table 4. Wetted Materials11
Parameter
Covers
Adhesives
Electronic components
2.0
0 [32]
-20 [-4]
0.8
1
12
3.5
5.0
85 [185]
105 [221]
2X operating pressure range minimum
3X operating pressure range minimum
2.8
7.3
0.46
0.2
2.0
-
mA
°C [°F]
°C [°F]
ms
ms
Vsupply
Vsupply
kOhm
%FSS10
bits
Characteristic
0% to 95% RH non-condensing
10 G at 20 Hz to 2000 Hz
100 G for 11 ms
1 million cycles minimum
Port 1 (Pressure Port)12
glass-filled PBT
silicone
silicon and glass
Port 2 (Reference Port)12
glass-filled PBT
silicone and epoxy
silicon, glass, and gold
Notes:
1. Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device.
2. An external bypass capacitor is required across the supply voltage (Pins 6 and 3 – see Figure 4) as close to the sensor supply pin as possible
for correct sensor operation.
3. Ratiometricity of the sensor (the ability of the output to scale to the input voltage) is achieved within the specified operating voltage for each
option. Other custom supply voltages are available, please contact Honeywell Customer Service.
4. The sensor is not reverse polarity protected. Incorrect application of excitation voltage or ground to the wrong pin may cause electrical failure.
5. The compensated temperature range is the temperature range (or ranges) over which the sensor will produce an output proportional to
pressure within the specified performance limits.
6. The operating temperature range is the temperature range over which the sensor will produce an output proportional to pressure but may not
remain within the specified performance limits.
7. Overpressure is the maximum pressure which may safely be applied to the product for it to remain in specification once pressure is returned to
the operating pressure range. Exposure to higher pressures may cause permanent damage to the product.
8. Burst pressure is the maximum pressure that may be applied to any port of the product without causing escape of pressure media. Product
should not be expected to function after exposure to any pressure beyond the burst pressure.
9. Total error band is the maximum deviation in output from ideal transfer function over the entire compensated temperature and pressure range.
Includes all errors due to offset, full scale span, pressure non-linearity, pressure hysteresis, repeatability, thermal effect on offset, thermal effect
on span and thermal hysteresis. Specification units are in percent of full scale span (%FSS).
10. Full scale span (FSS) is the algebraic difference between the output signal measured at the maximum (Pmax.) and minimum (Pmin.) limits of
the pressure range.
11. Consult Honeywell Customer Service for detailed material information.
12. For AC pressure port configuration, the “pressure” and “reference” ports are reversed.
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Figure 1. Nomenclature and Order Guide
Package Selection13
ASDX
__
Calibration Selection
X _____
_
_
_
Series
Power Supply Voltage
3 = 3.3 Vdc
5 = 5.0 Vdc
Pressure Port
Transfer Function Limits14
AV = Axial port on top, vented cover on bottom
A = 10% to 90% calibration
B = 5% to 95% calibration
Output Type15
S = SPI
2
2 = I C, Address 0x28
2
3 = I C, Address 0x38
2
4 = I C, Address 0x48
2
5 = I C, Address 0x58
2
6 = I C, Address 0x68
RR = Radial port on top, radial port on bottom
2
7 = I C, Address 0x78
Pressure Range16, 17, 18
Gage
AC = Axial port, sealed cover (commonly used
for absolute)
RV = Radial port, single
Future Option
Differential
Absolute
010NG = 10 in H2O
005ND = ±5 in H2O
010ND = ±10 in H2O
-
025CG = 25 cm H2O
015CD = ±15 cm H2O
025CD = ±25 cm H2O
-
001PG = 1 psi
005PG = 5 psi
015PG = 15 psi
030PG = 30 psi
100PG = 100 psi
001PD = ±1 psi
005PD = ±5 psi
015PD = ±15 psi
030PD = ±30 psi
-
015PA = 15 psi
030PA = 30 psi
100PA = 100 psi
025MG = 25 mbar
050MG = 50 mbar
100MG = 100 mbar
200MG = 200 mbar
500MG = 500 mbar
015MD = ±15 mbar
025MD = ±25 mbar
050MD = ±50 mbar
100MD = ±100 mbar
200MD = ±200 mbar
500MD = ±500 mbar
-
001BG = 1 bar
002BG = 2 bar
007BG = 7 bar
001BD = ±1 bar
002BD = ±2 bar
-
001BA = 1 bar
002BA = 2 bar
007BA = 7 bar
003KG = 3 kPa
004KG = 4 kPa
005KG = 5 kPa
010KG = 10 kPa
020KG = 20 kPa
050KG = 50 kPa
100KG = 100 kPa
200KG = 200 kPa
700KG = 700 kPa
003KD = ±3 kPa
004KD = ±4 kPa
005KD = ±5 kPa
010KD = ±10 kPa
020KD = ±20 kPa
050KD = ±50 kPa
100KD = ±100 kPa
200KD = ±200 kPa
-
100KA = 100 kPa
200KA = 200 kPa
700KA = 700 kPa
Notes:
13. Other package combinations are possible, please contact Honeywell Customer Service.
14. The transfer function limits define the output of the sensor at a given pressure input. By specifying the output signal at the maximum (Pmax.)
and minimum (Pmin.) limits of the pressure range, the complete transfer curve for the sensor is defined. See Figure 2 for a graphical
representation of each calibration. For the 12-bit digital output, Table 6 provides the output of the sensor at significant percentages. These
outputs are valid at the rated input voltage of the sensor.
15. The output type defines which communication protocol the sensor uses to communicate. Available protocols are I 2C or half duplex SPI (sensor
acts only as a slave). This communication protocol is not field selectable, and must be defined when ordering the sensor.
16. Custom pressure ranges are available, please contact Honeywell Customer Service.
17. The pressure units (inches H20, cm H20, psi, mbar, bar, kPa) define the units used during calibration and in the application.
18. See Table 5 for an explanation of sensor types.
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Table 5. Sensor Types
Type
Absolute
Gage
Differential
Description
Output is proportional to difference between applied pressure and built-in reference to vacuum (zero pressure).
Output is proportional to difference between applied pressure and atmospheric (ambient) pressure.
Output is proportional to difference between pressure applied to each of the pressure ports (Port 1 – Port 2).
Figure 2. Transfer Functions and Limits
A Calibration, 10% to 90%
B Calibration, 5% to 95%
Table 6. Sensor Output at Significant Percentages
% Output
Digital Counts (dec)
0%
0
5%
819
10%
1638
50%
8192
90%
14746
95%
15565
100%
16383
Figure 3. Completed Catalog Listing Example
ASDXAVX001PG2A3:
AV pressure port, 1 psi gage, I2C output
(Address 0x28), 10% to 90% calibration
at 3.3 Vdc operation.
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Digital Counts (hex)
0x0000
0x0333
0x0666
0x2000
0x399A
0x3CCD
0x3FFF
ASDXAVX001PG2A3 Output vs Pressure
Figure 4. Dimensional Drawings (For reference only: mm [in].)
RR Package (Legacy D4)
AV Package (Legacy G2)
RV Package
AC Package (Legacy A2)
Table 7. Pinout
Pin
1
Definition
SDA
I2C
Type
digital I/O
2
SCL
digital input
3
4
GND
N/C
supply
not used
5
SS
digital output
6
7
Vsupply
N/C
supply
not used
8
N/C
not used
Description
serial bidirectional data;
data is clocked in or out on
clock edge of SCL
serial clock input; used to
clock data on SDA
power supply ground
do not connect in the
application
interrupt signal (conversion
complete output)
power supply source
do not connect in the
application
do not connect in the
application
Pin
1
Definition
MISO
SPI
Type
digital output
2
SCK
digital input
3
4
GND
N/C
supply
not used
5
SS
digital input
6
7
Vsupply
N/C
supply
not used
8
N/C
not used
Description
“Master In Slave Out” - serial
output data; data is clocked
out on clock edge of SCK
serial clock input; used to
clock data on MISO
power supply ground
do not connect in the
application
slave select
power supply source
do not connect in the
application
do not connect in the
application
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WARNING
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result
in death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective. The
foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
MISUSE OF DOCUMENTATION
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail: [email protected]
Internet: www.honeywell.com/sensing
Phone and Fax:
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
Asia Pacific
Europe
Latin America
USA/Canada
+65 6355-2828; +65 6445-3033 Fax
+44 (0) 1698 481481; +44 (0) 1698 481676 Fax
+1-305-805-8188; +1-305-883-8257 Fax
+1-800-537-6945; +1-815-235-6847
+1-815-235-6545 Fax
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
Sensing and Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
www.honeywell.com/sensing
008095-11-EN IL50 GLO Printed in USA
July 2010
Copyright © 2010 Honeywell International Inc. All rights reserved.
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