NPA-730B-05WG

## NPA Low Pressure 

Surface-Mount Pressure Sensor Series 

The NPA product series 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-Low Pressure Series is available in Gauge or Differential pressure ranges with either 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, Low Pressure 

- 2” and 5” H2O Full Scale 

- Output Options: Amplified Analog, Digital Serial (14bit), Digital I[2] C 

- On chip temperature sensor in digital mode 

- Operating temperature range of -40 to 125°C 

- Total Error Band: +/-1.5% Span at 5”H2O full scale +/-2.5% Span at 2”H2O full scale 

**Amphenol Advanced Sensors** 

## Low Pressure NPA Specifications 

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Parameter Value Units Notes<br>Pressure Range 2 or 5 In H2O 498 or 1245 Pa<br>Maximum Overpressure 140 In H2O 400 in H2O Package Overpressure<br>Electrical @ 25°C (77°F) unless otherwise stated<br>Input Excitation 3.3 or 5.0 VDC<br>Environmental<br>Temperature Range<br>  Operating  -40 to +125  °C  -40 to +257°F<br>  Compensated  0 to +60  °C  +32 to +140°F<br>  Storage -40 to +125 °C -40 to +257°F<br>Mechanical/Package<br>Weight ~1 grams<br>Media Compatibility<br>Media compatible with thermoset plastic, silicon, epoxy, RTV,<br>Positive differential and gage ports Pyrex, and silicone gel<br>Negative differential ports Dry gasses only<br>Performance Parameters Units Minimum Maximum Notes<br>-1.5 1.5 5”H2O Full Scale<br>Accuracy (Total Error Band)  % Span<br>-2.5 2.5 2”H2O Full Scale<br>Response Time ms 2 0.5 ms Typical<br>Current Consumption mA 1.2 Typical<br>**----- End of picture text -----**<br>


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Series Excitation Voltage Min (V) Max (V) Notes<br>**----- End of picture text -----**<br>


|Series|Excitation Voltage|Min (V)|Max (V)|Notes|
|---|---|---|---|---|
||||||
|NPA-300|3.3V|3.28|3.32|NPA amplifed analog|
|NPA-500|5.0V|4.97|5.03|NPA amplifed analog|
|NPA-730|3.3V|3.28|3.32|NPA digital I2C|
|NPA-700|5.0V|4.97|5.03|NPA digital I2C|



**2** 

## Output Option:  Amplified Analog 

|Analog Performance Parameters 5 volt Excitation|Analog Performance Parameters 5 volt Excitation|Analog Performance Parameters 5 volt Excitation|Analog Performance Parameters 5 volt Excitation|Analog Performance Parameters 5 volt Excitation|Analog Performance Parameters 5 volt Excitation|
|---|---|---|---|---|---|
|||2 inH2O||5 inH2O||
|Parameter|Units|Min|Max|Min|Max|
|Offset<br>Volts<br>0.40<br>0.60<br>0.44<br>0.56||||||
|Span<br>Volts<br>4<br>4||||||
|Analog Performance Parameters 3.3 volt Excitation||||||
|||2 inH2O||5 inH2O||
|Parameter|Units|Min|Max|Min|Max|
|Offset<br>Volts<br>0.44<br>0.56<br>0.46<br>0.54||||||
|Span<br>Volts<br>2.5<br>2.5||||||



**Typical Analog Circuits -** Circuit layout same as “Ratiometric Voltage Output” 

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Vsupply 3.3V or 5V<br>1 14<br>NPA<br>2 13<br>3 Sensor 12<br>4 11 0.1µF<br>5 Vgate 10<br>6 VSS VDD 9 Vout<br>7 SIG 8<br>Ground<br>**----- End of picture text -----**<br>


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Ratiometric Voltage Output - Standard NPA<br>**----- End of picture text -----**<br>


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Vsupply 5.5V to 30V<br>J107<br>1 14<br>NPA<br>2 13<br>3 Sensor 12<br>4 11 0.1µF<br>5 Vgate 10<br>6 VSS VDD 9 Vout<br>7 SIG 8<br>Ground<br>**----- End of picture text -----**<br>


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Ratiometric Voltage Output with Over-Voltage Protection  - Request Required<br>**----- End of picture text -----**<br>


## **NPA Amplified Output Pinout** 

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Pin # Amplified  Analog Function Notes<br>**----- End of picture text -----**<br>


|1|--||
|---|---|---|
|2|--||
|3|NC|Do Not Connect|
|4|NC|Do Not Connect|
|5|--||
|6|VSS|Ground Supply|
|7|--||
|8|SIG|Analog Out, Calibration<br>Interface|
|9|VDD|Supply Voltage|
|10|--||
|11|NC|Do Not Connect|
|12|NC|Do Not Connect|
|13|--||
|14|--||



**3** 

## Output Option:  Digital I[2] C 

|**Parameter**|**Units**|**Min**|**Typ**|**Max**|**Notes**|
|---|---|---|---|---|---|
|**Digital Performance**||||||
|Resolution (ADC)<br>bit<br>14<br>16383 steps||||||
|I2C Slave Address<br>0x28||||||
|Sampling Rate<br>kHz<br>2||||||
|I2C Bit Rate<br>kbits/s<br>100<br>400||||||
|I2C Mode<br>Update||||||



|Digital Performance Parameters 3.3 and 5 volt Excitation|Digital Performance Parameters 3.3 and 5 volt Excitation|Digital Performance Parameters 3.3 and 5 volt Excitation|Digital Performance Parameters 3.3 and 5 volt Excitation|Digital Performance Parameters 3.3 and 5 volt Excitation|Digital Performance Parameters 3.3 and 5 volt Excitation|
|---|---|---|---|---|---|
|||2 inH2O||5 inH2O||
|Parameter|Units|Min|Max|Min|Max|
|Offset<br>Counts<br>1311<br>1966<br>1442<br>1835||||||
|Span<br>Counts<br>13106<br>13106||||||



**4** 

## Digital I2C Update Mode Output Options 

## **NPA I[2] C Pinout** 

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||||||||
|---|---|---|---|---|---|---|
|Pin #|Digital I|[2]|C|Function Notes|
|1|--|
|2|--|
|3|NC|Do Not Connect|
|||fe)|NPA|
|4|NC|Do Not Connect|
|5|--|Ei|Sensor|
|0.1uF|EI|
|6|VSS|Ground Supply|Ei|10||
|7|VDD|Supply Voltage|=[7]|vssVDD|SDASCL|L9TS]]|
|Serial Data, Calibration|
|8|SDA|Interface|I|[2]|C Circuit NPA Pinout|
|Serial Clock, Calibration|
|9|SCL|
|Interface|
|10|--|
|11|NC|Do Not Connect|
|12|NC|Do Not Connect|
|13|--|
|14|--|

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**5** 

## Barbed Design 

Recommended tubing size of 3/32” ID, 7/32” OD, 1/16” wall thickness (All measurements given in mm) 

## Suggested PCB Land Pattern 

_Package Leadframe Material: Alloy 194, NiPdAu_ 

**6** 

## **Ordering Information** 

## **Model NPA** 

**Code Description** 300 Analog Amplified Output, 3.3Vdc Excitation, Calibrated sensor 500 Analog Amplified Output, 5Vdc Excitation, Calibrated sensor 700     I[2] C - Digital output, Calibrated Sensor, 2 byte, 5Vdc Excitation 730 I[2] C - Digital output, Calibrated Sensor, 2 byte, 3.3Vdc Excitation **Code Port Type** B 2 barbed ports for Gauge and Differential pressure types **Code Pressure Range** 02W 2”H20 (0.5 KPa) 05W 5”H20 (1.24 KPa) **Code Pressure Type** G Gauge D Differential 

**NPA    -      700    B    -  02W     D      EXAMPLE** 

- _Contact NovaSensor for custom port options._ 

- _Refer to application guide 910-289 for more information._ 

- _Product is RoHS:2010 compliant._ 

## **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. 

**7** 

## **Amphenol Advanced Sensors** 

## www.amphenol-sensors.com 

© 2018 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-920-644D      04/2018**