Minia
tureAmplifiedPressureSensors
cm H
2
O calibrated for Medical applications
Features
• cm H
2
O Pressure Ranges
• Matched pressure port volumes
• Temperature Compensated
• Calibrated Zero and Span
Applications
• Medical Instrumentation
• Respiratory Breathing
General Description
The Miniature Amplified Output pressure sensors is based upon a proprietary technology to reduce all output
offset or common mode errors. This model provides a calibrated amplified output with superior output offset
characteristics. Output offset errors due to change in temperature, stability to warm-up, stability to long time
period, and position sensitivity are all significantly reduced when compared to conventional compensation
methods. In addition the sensor utilizes a silicon, micromachined, stress concentration enhanced structure to
provide a very linear output to measured pressure.
These calibrated and temperature compensated sensors give an accurate and stable output over a wide
temperature range. This series is intended for use with non-corrosive, non-ionic working fluids such as air, dry
gases and the like.
The output of the device is ratiometric to the supply voltage and operation from any D.C. supply voltage between
4.5 and 5.5 volts.
f
408 225 2079
a
16035 Vineyard Blvd. Morgan Hill, CA 95037
p
408 225 4314
e
www.allsensors.com
Physical Dimensions
0.50
(12.7)
B-port
A-port
Pin 1 2 3 4
0.10
Typical
(2.54)
0.30
(7.6)
0.62
(15.7)
0.380
0.080 O.D.
(2.00)
All Sensors
DS-0097 Rev A
all sensors
Pressure Sensor Characteristics Maximum Ratings
Supply Supply Voltage VS
Common-mode pressure
Lead Temperature
(soldering 2-4 sec.)
+4.5 to
+75.5Vdc
10 psig
250°C
Environmental Specifications
Temperature Ranges
Compensated
Operating
Storage
Humidity Limits
see specification
-25 to 85° C
-40 to 125° C
0 to 95% RH
(non condensing)
Standard Pressure Ranges
Part Number
5 cmH2O-D1-4V-MINI
20 cmH2O-D1-4V-MINI
120 cmH2O-D1-4V-MINI
5 cmH2O-D1-P4V-MINI
20 cmH2O-D1-P4V-MINI
120 cmH2O-D1-P4V-MINI
Operating Pressure
-0.2 to 5 cmH2O
-0.2 to 20 cmH2O
-10 to 120 cm H2O
-0.2 to 5 cmH2O
-0.2 to 20 cmH2O
-10 to 120 cm H2O
Compensated Range
5 to 50° C
5 to 50° C
5 to 50° C
-25 to 85° C
-25 to 85° C
-25 to 85° C
Proof Pressure
50 cmH2O
100 cmH2O
300 cmH2O
50 cmH2O
100 cmH2O
300 cmH2O
Burst Pressure
200 cmH2O
300 cmH2O
600 cmH2O
200 cmH2O
300 cmH2O
600 cmH2O
Specification Notes
A
LL PARAMETERS ARE MEASURED AT
5.0
VOLT EXCITATION
,
FOR THE NOMINAL FULL SCALE PRESSURE AND ROOM TEMPERATURE UNLESS
P
RESSURE MEASUREMENTS ARE WITH POSITIVE PRESSURE APPLIED TO THE
F
RONT
P
ORT
.
NOTE
2: S
HIFT IS RELATIVE TO
25°C.
NOTE
3: S
HIFT IS WITHIN THE FIRST HOUR OF EXCITATION APPLIED TO THE DEVICE
.
NOTE
4: M
EASURED AT ONE
-
HALF FULL SCALE RATED PRESSURE USING BEST STRAIGHT LINE CURVE FIT
.
NOTE
5: T
HE VOLTAGE ADDED TO THE OFFSET VOLTAGE AT FULL SCALE PRESSURE
. N
OMINALLY THE OUTPUT VOLTAGE RANGE IS
0.25
TO
4.25
VOLTS
FOR MINUS TO PLUS FULL SCALE PRESSURE
.
OTHERWISE SPECIFIED
.
NOTE
1:
All Sensors reserves the right to make changes to any products herein. All Sensors 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.
Equivalent Circuit
Minia
tureAmplifiedMedicalRangePressureSensors
Performance Characteristics for 5 cmH2O-D1-4V-MINI
Parameter, note 1
Operating Range, pressure
Output Voltage, @5 cmH2O
Output Voltage @ zero pressure
Output Voltage @-0.2 cmH2O
Offset Temperature Shift (5°C-50°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (±1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Span Shift (5°C-50°C), note 2
±15
±15
±20
0.05
±0.25
±1.0
Minimum
-0.2
4.40
0.30
0.13
4.5
0.35
0.18
Nominal
Maximum
5
4.6
0.40
0.23
±1.0
Units
cmH2O
volt
volt
volt
%span
mvolt
mvolt
%fs
%span
Parameter, note 1
Operating Range, pressure
Output Voltage, @20 cmH2O
Output Voltage @ zero pressure
Output Voltage @-0.2 cmH2O
Offset Temperature Shift (5°C-50°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (±1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Span Shift (5°C-50°C), note 2
Minimum
-0.2
4.40
0.30
0.25
Nominal
Maximum
20
Units
cmH2O
volt
volt
volt
%span
mvolt
mvolt
mvolt
4.5
0.35
0.30
4.6
0.40
0.35
±1.0
±10
±10
±10
0.05
±0.25
±1.0
%span
Performance Characteristics for 120 cmH2O-D1-4V-MINI
Parameter, note 1
Operating Range, pressure
Output Voltage, @120 cmH2O
Output Voltage @ zero pressure
Output Voltage @-10 cmH2O
Offset Temperature Shift (5°C-50°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (±1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Span Shift (5°C-50°C), note 2
±15
±15
±20
0.05
±0.25
±1.0
Minimum
-10
4.40
0.30
0.23
4.5
0.35
0.28
Nominal
Maximum
120
4.6
0.40
0.33
±1.0
Units
cmH2O
volt
volt
volt
%span
mvolt
mvolt
mvolt
%fs
%span
All Sensors
DS-0097 Rev A
a
16035 Vineyard Blvd. Morgan Hill, CA 95037
p
408 225 4314
%fs
f
408 225 2079
e
www.allsensors.com
Performance Characteristics for 20 cmH2O-D1-4V-MINI
all sensors
mvolt
Performance Characteristics for 5 cmH2O-D1-P4V-MINI
Parameter, note 1
Operating Range, pressure
Output Voltage, @5 cmH2O
Output Voltage @ zero pressure
Output Voltage @-0.2 cmH2O
Offset Temperature Shift (-25 to 85°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (±1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Span Shift (-25 to 85°C), note 2
±15
±15
±20
0.05
±0.25
±1.0
Minimum
-0.2
4.40
0.30
0.13
4.5
0.35
0.18
Nominal
Maximum
5
4.6
0.40
0.23
±1.0
Units
cmH2O
volt
volt
volt
%span
mvolt
mvolt
mvolt
%fs
%span
Performance Characteristics for 20 cmH2O-D1-P4V-MINI
Parameter, note 1
Operating Range, pressure
Output Voltage, @20 cmH2O
Output Voltage @ zero pressure
Output Voltage @-0.2 cmH2O
Offset Temperature Shift (-25 to 85°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (±1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Span Shift (-25 to 85°C), note 2
±10
±10
±10
0.05
±0.25
±1.0
Minimum
-0.2
4.40
0.30
0.25
4.5
0.35
0.30
Nominal
Maximum
20
4.6
0.40
0.35
±1.0
Units
cmH2O
volt
volt
volt
%span
mvolt
mvolt
mvolt
%fs
%span
Performance Characteristics for 120 cmH2O-D1-P4V-MINI
Parameter, note 1
Operating Range, pressure
Output Voltage, @120 cmH2O
Output Voltage @ zero pressure
Output Voltage @-10 cmH2O
Offset Temperature Shift (-25 to 85°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (±1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Span Shift (-25 to 85°C), note 2
±15
±15
±20
0.05
±0.25
±1.0
Minimum
-10
4.40
0.30
0.23
4.5
0.35
0.28
Nominal
Maximum
120
4.6
0.40
0.33
±1.0
Units
cmH2O
volt
volt
volt
%span
mvolt
mvolt
mvolt
%fs
%span
Minia
tureAmplifiedMedicalRangePressureSensors
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