Miniature Basic Pressure Sensors
Offset Compensated
Pressure Sensors
Features
• 0 to 1 “H2O to 0 to 30 “H2O Pressure Ranges
• 0.5 % linearity
• Offset Compensated
Applications
• Medical Instrumentation
• Environmental Controls
• HVAC
General Description
The Miniature BASIC series pressure sensors are based upon a proprietary technology to reduce the size of the sen-
sor and yet maintain a high level of performance. The technology is currently being patented. 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 sili-
con, micromachined, stress concentration enhanced structure to provide a very linear output to measured pressure.
These offset 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 up to +6V
is acceptable.
e
www.allsensors.com
DATE
Physical Dimensions
Equivalent Circuit
Input Resittance
Output Resistance
TCR
TCS
Approvals
MKT
DATE
MFG
DATE
ENG
DATE
QA
1.66 k ohm
1.66 k ohm
2600 ppm/°C
-2200 ppm/°C.
As Is
With Change
As Is
With Change
As Is
With Change
As Is
With Change
All Sensors
DS-0105 Rev B
a
16035 Vineyard Blvd. Morgan Hill, CA 95037
p
408 225 4314
f
408 225 2079
all sensors
Pressure Sensor Characteristics Maximum Ratings
Supply Supply Voltage VS
Common-mode pressure
Lead Temperature
(soldering 2-4 sec.)
6 Vdc
5 psig
250°C
Environmental Specifications
Temperature Ranges
Compensated
Operating
Storage
Humidity Limits
0 to 70° C
-25 to 85° C
-40 to 125° C
0 to 95% RH
(non condensing)
Standard Pressure Ranges
Single in Line Packages-SIP
One Port
Part Number
1 INCH-G-BASIC
5 INCH-G-BASIC
10 INCH-G-BASIC
20 INCH-G-BASIC
30 INCH-G-BASIC
Operating Pressure
0 - 1 “H2O
0 - 5 “H2O
0 - 10 “H2O
0 - 20 “H2O
0 - 30 “H2O
Two Ports Same Side
Part Number
1 INCH-D1-BASIC
5 INCH-D1-BASIC
10 INCH-D1-BASIC
20 INCH-D1-BASIC
30 INCH-D1-BASIC
Two Ports Opposite Side
Part Number
1 INCH-D2-BASIC
5 INCH-D2-BASIC
10 INCH-D2-BASIC
20 INCH-D2-BASIC
30 INCH-D2-BASIC
Performance Characteristics for 1 INCH-x-BASIC
Parameter, note 1
Operating Range, differential pressure
Output Span, @ 1 “H2O, note 5
Offset Voltage @ zero differential pressure
Offset Temperature Shift (0°C-70°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Minimum
--
4.0
--
--
--
--
--
--
Nominal
1.0
7.0
--
±0.1
±10
±15
±80
0.1
Maximum
--
14.0
±10
--
--
--
--
±0.5
Units
“H2O
mV
mV
mV
uV
uV
uV
%fs
Performance Characteristics for 5 INCH-x-BASIC
Parameter, note 1
Operating Range, differential pressure
Output Span, @ 5 “H2O, note 5
Offset Voltage @ zero differential pressure
Offset Temperature Shift (0°C-70°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Minimum
--
15
--
--
--
--
--
--
Nominal
5.0
22.5
--
±0.1
±10
±15
±80
0.1
Maximum
--
30
±10
--
--
--
--
±0.5
Units
“H2O
mV
mV
mV
uV
uV
uV
%fs
Miniature Basic Pressure Sensors
Performance Characteristics for 10 INCH-x-BASIC
Parameter, note 1
Operating Range, differential pressure
Output Span, @ 10 “H2O, note 5
Offset Voltage @ zero differential pressure
Offset Temperature Shift (0°C-70°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Minimum
--
15
--
--
--
--
--
--
Nominal
10.0
30
--
±0.1
±10
±10
±80
0.1
Maximum
--
45
±10
--
--
---
--
±0.5
Units
“H2O
mV
mV
mV
uV
uV
%fs
Performance Characteristics for 20 INCH-x-BASIC
Parameter, note 1
Operating Range, differential pressure
Output Span, @ 20 “H2O, note 5
Offset Voltage @ zero differential pressure
Offset Temperature Shift (0°C-70°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Minimum
--
15
--
--
--
--
--
--
Nominal
20.0
30
--
±0.1
±10
±5
±80
0.1
Maximum
--
45
±10
--
--
--
--
±0.5
Units
mV
mV
mV
uV
uV
uV
%fs
Performance Characteristics for 30 INCH-x-BASIC
Parameter, note 1
Operating Range, differential pressure
Output Span, @ 30 “H2O, note 5
Offset Voltage @ zero differential pressure
Offset Temperature Shift (0°C-70°C), note 2
Offset Warm-up Shift, note 3
Offset Position Sensitivity (1g)
Offset Long Term Drift (one year)
Linearity, hysteresis error, note 4
Minimum
--
15
--
--
--
--
--
--
Nominal
30.0
30
--
±0.1
±10
±5
±80
0.05
Maximum
--
45
±10
--
---
---
--
±0.5
Units
“H2O
mV
mV
mV
uV
uV
uV
%fs
Specification Notes
note
1: A
ll pArAmeters Are meAsured At
4.5
volt excitAtion
,
for the nominAl full scAle pressure And room temperAture unless
otherwise specified
. p
ressure meAsurements Are with negAtive pressure Applied to the
top-port (
the only port for the
single port
)
configurAtion
.
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
.
Pressure Response: for any pressure applied the response time to get to 90% of pressure applied is typically less
than 100 useconds.
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.
All Sensors
DS-0105 Rev B
a
16035 Vineyard Blvd. Morgan Hill, CA 95037
p
408 225 4314
f
408 225 2079
e
www.allsensors.com
“H2O
all sensors
uV
51mcu
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