NPA
Surface-Mount
Pressure Sensor Series
The NPA Series of Surface-Mount Pressure Sensors is provided in a miniature size as a cost
effective solution for applications that require calibrated performance. Packaged in a SOIC14 pin
surface mount, the NPA Series is available in gauge, absolute and differential pressure ranges
with either mV, amplified analog or digital outputs. The sensor is intended for printed circuit board
mounting and delivered in tape and reel form to simplify manufacturing handling.
Features
• Surface-mountable
• Differential, gauge, absolute and low pressure
• 10” H2O to 30 PSI full scale
• Output Options: Amplified Analog, Digital Serial (14bit), Digital I2C, Uncalibrated mV
• On chip temperature sensor in digital mode
• Operating temperature range of -40°C to 125°C
• Total Error Band < ±1.5% FSO
• Up to 60 psi proof pressure
Amphenol
Advanced Sensors
General NPA Specifications
Parameter
Value
Units
Notes
Operating
-40 to +125
°C
-40 to +257°F
Compensated
0 to 60
°C
+32 to +157°F
Storage
-40 to +125
°C
-40 to +257°F
~1
grams
Environmental
Temperature Range
Mechanical
Weight
Media Compatibility
Positive differential and gauge
ports
Compatible with exposed materials
Negative differential ports
Dry gases only
1
Notes: 1. Exposed materials are thermoset plastic, silicon, epoxy, RTV, pyrex and silicone
Parameter
Units
Min
Typ
Accuracy (Total Error Band)
%FSO
-1.5
Proof Pressure (10”H2O to 1 psi)
psi
5
Proof Pressure (5 psi to 30 psi)
psi
60
Max
Notes
Common Parameters
Maximum Package Pressure
60
Pressure Ranges
Series
2
Excitation Voltage
1.5
10” H2O
Min/Max
30 psi
Notes
NPA-100
1.5mA
NPA Uncompensated, mV
NPA-300
3.3V
3.135 V to 3.465 V
NPA Compensated, low power amplified analog
NPA-500
5.0V
4.75 V to 5.25 V
NPA Compensated, amplified analog
NPA-600
5.0V
4.75 V to 5.25 V
NPA Compensated, digital serial
NPA-700
5.0V
4.75 V to 5.25 V
NPA Compensated, digital I2C
NPA-730
3.3V
3.135 V to 3.465 V
NPA Compensated, digital I2C
Output Option: Amplified Analog
Parameter
Units
Min
Max
Analog Performance Parameters 5 volt Excitation
Offset
Volts
Span (Absolute/Gauge)
Volts
0.44
0.56
4
Analog Performance Parameters 3.3 volt Excitation
Offset
Volts
Span (Absolute/Gauge)
Volts
0.46
0.54
2.5
Typical Analog Circuits
Circuit layout same as “Ratiometric Voltage Output”
V supply +2.7 to +5.5V
V supply +5 to +5.5V
J107
1
NP A
2
3
S ens or
14
1
13
2
12
3
4
11
5
V gate 10
6 VS S
7
V DD
9
S IG
8
0.1µF
NP A
13
S ens or
12
4
11
5
V ga
gate
te 10
6 VS S
V out
14
7
V DD
9
S IG
8
0.1µF
V out
G round
Ratiometric Voltage Output - Standard NPA
G round
Ratiometric Voltage Output with Over-Voltage Protection - Request Required
V supply +5.5 to +30V
NPA Pinout
MMBF 4392
1
3
14
NP A
2
13
S ens or
12
4
11
5
V gate 10
6 VS S
7
V DD
9
S IG
8
0.1µF
V out
G round
Absolute Voltage Output - Request Required
Pin
#
Amplified
Analog
Function Notes
1
--
2
--
3
NC
Do Not Connect
4
NC
Do Not Connect
5
--
6
VSS
7
--
8
SIG
Analog Out, Calibration Interface
9
VDD
Supply Voltage
10
--
11
NC
Do Not Connect
12
NC
Do Not Connect
13
--
14
--
Ground Supply
3
Output Option: Digital Serial (14 bit)
Parameter
Units
Min
Typ
Max
Notes
Digital Performance
Resolution
ADC
14bit
Sampling Rate
kHz
1
16383
steps
Digital Output Options
Streaming serial output is a 14 bit number proportional to the full scale.
Zacwire—Digital Output (NOM) Bridge Readings
Zacwire—Digital Output (NOM) Bridge Readings with Temperature Option
NPA Pinout
4
Pin
#
Amplified
Digital Serial
Function Notes
1
--
2
--
3
NC
Do Not Connect
4
NC
Do Not Connect
5
--
6
VSS
7
--
8
SIG
Digital Out, Calibration Interface
9
VDD
Supply Voltage
10
--
11
NC
Do Not Connect
12
NC
Do Not Connect
13
--
14
--
Ground Supply
Output Option: Digital I2C
Parameter
Units
Min
Typ
Max
Notes
Digital Performance
Resolution (ADC)
bit
14
I2C Slave Address
16383 steps
0x28
Sampling Rate
kHz
I2C Bit Rate
kbits/s
2
100
I2C Mode
400
Update
Digital I2C Update Mode Output Options
I2C Circuit NPA Pinout
Pin
#
Digital I2C
1
--
2
--
3
NC
Do Not Connect
4
NC
Do Not Connect
5
--
6
VSS
Ground Supply
7
VDD
Supply Voltage
8
SDA
Serial Data, Calibration Interface
9
SCL
Serial Clock, Calibration Interface
10
--
11
NC
Do Not Connect
12
NC
Do Not Connect
13
--
14
--
Function Notes
I2C Circuit NPA Pinout
5
Output Option: Uncalibrated mV
NPA Uncalibrated Performance
10 “H20 to 1 psi
Min
Typ
Max
Notes
Units
Pressure Range
psi
0.36 to 1
10”H2O = 2.5KPa
5 to 30
Excitation
mA
1.5
10 VDC Maximum
1.0
Input Impedance
Ω
5000±20%
5000
±20%
Output Impedance
Ω
5000±20%
5000
±20%
Zero Offset
mV
± 75
±10
Full Scale Output
mV
40 to 120
10°H20
75 to 135
1 psi
Min
Typ
BFSL
100 to 166
Linearity
%FSO
±0.25
Pressure Hysteresis
%FSO
±0.20
±0.15
Temperature Coefficient of Zero
μV/ V / °C
±30
±20
Temperature Coefficient of
Resistance
% /°C
0.29
0.38
Temperature Coefficient of Sensitivity
%FSO/°C
-0.2
-0.19
Thermal Hysteresis of Zero
%FSO
±0.15
±0.2
Position Sensitivity
%FSO
0.2
N/A
NPA Pinout
Pin
#
6
5 psi to 30 psi
Parameter
Uncalibrated
mV
Function Notes
1
--
2
--
3
VN
Sensor Interface Negative Output
4
VSSP
Sensor Interface Ground
5
--
6
NC
7
--
8
NC
Do Not Connect
9
NC
Do Not Connect
10
--
11
VP
Sensor Interface Positive Output
12
VDDP
Sensor Interface Positive Excitation
13
--
14
--
Do Not Connect
±0.25
Max
Notes
10 VDC
Maximum
5 psi to 30
psi
Manifold Design (All measurements given in mm)
No Port Design (All measurements given in mm)
Barbed Design
Recommended tubing size of 3/32” ID, 7/32” OD,
1/16” wall thickness (All measurements given in mm)
1 Barb Port — Request Required
Suggested PCB Land Pattern
Package Leadframe Material: Alloy 194, NiPdAu Plated
7
Ordering Information
Model
NPA
Code Description
100 mV Output, Ratiometric Uncalibrated Sensor***
300 Analog Amplified Output, 3.3Vdc Excitation, Calibrated Sensor
500 Analog Amplified Output, 5Vdc Excitation, Calibrated Sensor
600 Zacwire —Digital Serial Output, Calibrated Sensor, 2 byte
601 Zacwire —Digital Serial Output, Calibrated Sensor, 3 byte
700 I2C - Digital Output, 5Vdc Excitation, Calibrated Sensor, 2 byte
730 I2C - Digital Output, 3.3Vdc Excitation, Calibrated Sensor, 2 byte
Code Port Type
M
1 manifold port for Gauge and Absolute pressure types
B
2 barbed ports for Gauge, Absolute and Differential pressure types**
N
Non ported ***
Code Pressure Range
10W
10”H2O (2.5 KPa)
001 1 PSI (7 KPa)
005 5 PSI (35 KPa)
015 15 PSI (100 KPa)
030 30 PSI (200 KPa)
Code Pressure Type
G Gauge
D Differential
A * Absolute
NPA
-
-
Note: * Absolute pressure ranges are available in 15 PSIA and 30 PSIA only.
** 1 barbed port available upon request.
*** Order NPA-100N-XXXG in place of NPA-100N-XXXD.
•
•
•
•
Contact NovaSensor for custom pressure ranges.
Refer to application guide 910-289 for more information.
Product is RoHS:2010 compliant.
For low pressure version, see datasheet AAS-920-644E.
NPA Product
Dual/Single Barb
Manifold
No Port
Qty/Tube
42 Units
42 Units
42 Units
Qty/Reel
300 Units
448 Units
896 Units
Qty/Reel/Carton
6 Reels
6 Reels
6 Reels
Qty/Carton
1800 Units
2688 Units
5376 Units
Warranty
NovaSensor warrants its products against defects in material and workmanship for 12 months from the date of shipment. Products
not subjected to misuse will be repaired or replaced. NovaSensor reserves the right to make changes without further notice to any
products herein. NovaSensor makes no warranty, representation or guarantee regarding the suitability of its products for any particular
application. NovaSensor does not assume any liability arising out of the application or use of any product or circuit and specifically
disclaims, and all liability, without limitation consequential or incidental damages. The foregoing warranties are exclusive and in lieu of
all other warranties, whether written, oral, implied or statutory. No implied statutory warranty or merchantability or fitness for particular
purpose shall apply.
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2019 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
AAS-920-477H - 02/2019