GE Measurement & Control Solutions NPA 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 Series is available in Gauge, Absolute or 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 & 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 to 125°C • Total Error Band < ±1.5% FSO • 60 psi proof pressure on all ranges GE imagination at work 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 35 Proof Pressure (>1 psi to 30 psi) psi 60 Max Notes Common Parameters 1.5 Maximum Package Pressure 60 Pressure ranges 10”H2O Min/Max 30psi Series Excitation Voltage Notes NPA-100 1.5mA 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 Uncompensated, mV * 3.3V optional, contact factory for more details Output Option: Amplified Analog Parameter Units Min Typ Max 0.44 0.5 0.56 Analog Performance Parameters 5 volt Excitation Offset Volts Span Volts 4 Analog Performance Parameters 3.3 volt Excitation Offset Volts Span Volts 0.46 0.5 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 V out Ratiometric Voltage Output - Standard NPA MMBF 4392 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 13 12 11 5 V ga gate te 10 6 VS S V DD 9 S IG 8 0.1µF V out G round Ratiometric Voltage Output with Over-Voltage Protection - Request Required V supply +5.5 to +30V 1 NP A S ens or 4 7 G round 14 0.1µF V out G round Absolute Voltage Output - Request Required NPA Pinout Pin # Amplified Analog Function Notes 1 -- 2 -- 3 -- 4 -- 5 -- 6 VSS 7 -- 8 SIG Analog Out, Calibration Interface 9 VDD Supply Voltage 10 -- 11 -- 12 -- 13 -- 14 -- Ground Supply Output Option: Digital Serial (14 bit) Parameter Units Min Typ Max Notes Digital Performance Resolution ADC 14bit Sampling Rate kHz 1 16383 steps Digital Serial Output Temperature Sensor Accuracy 4°C 8bit Digital Output Options Streaming serial output is a 14 bit number proportional to the full scale. 2 DATA Byte Packet Digital Bridge Output ½ S 7 6 5 4 3 2 1 0 P S 0 0 5 4 3 2 1 0 P Stop Data Byte Bridge High Data Byte Bridge Low S Start Bit P Parity Bit Data Byte 2 Data Bit (Example: Bit 2 ½ ½ Stop Bit Stop Zacwire—Digital Output (NOM) Bridge Readings 3 DATA Byte Packet Digital Bridge Output with Temperature S 0 0 5 4 3 2 1 0 P ½ Stop Data Byte Bridge High S 7 6 5 4 3 2 1 0 P Data Byte Bridge Low Zacwire—Digital Output (NOM) Bridge Readings with Temperature Option NPA Pinout Pin # Amplified Digital Serial Function Notes 1 -- 2 -- 3 -- 4 -- 5 -- 6 VSS 7 -- 8 SIG Digital Out, Calibration Interface 9 VDD Supply Voltage 10 -- Not Connected 11 -- 12 -- 13 -- 14 -- Ground Supply ½ Stop S 7 6 5 4 3 2 1 0 P Data Byte Temperature Output Option: Digital I2C Parameter Units Min Typ Max Notes Digital Performance Resolution (ADC) bit 14 I2C Slave Address Sampling Rate kHz I2C Bit Rate kbits/s 2 100 2 I C Mode Temperature Accuracy (0 to 60°C) 16383 steps 0x28 400 Update °C 2 Digital I2C Update Mode Output Options NPA Pinout Pin # Digital I2C 1 -- 2 -- 3 -- 4 -- 5 -- 6 VSS Ground Supply 7 VDD Supply Voltage 8 SDA Serial Data, Calibration Interface 9 SCL Serial Clock, Calibration Interface 10 -- 11 -- 12 -- 13 -- 14 -- Function Notes 11 bit Output Option: Uncalibrated mV NPA Uncalibrated Performance 10 “H20 to 1 psi Min Typ Max Notes 5 psi to 30 psi Parameter Units Min Typ Pressure Range psi 0.36 to 1 10”H2O = 0.361psi = 2.49KPa 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 Full Scale Output mV 40 to 120 10 °H20 75 to 135 1 psi BFSL 100 to 166 %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 Pin # Uncalibrated mV Function Notes 1 -- 2 -- 3 VP Sensor Interface Positive Output 4 VSSP Sensor Interface Ground 5 -- 6 -- 7 -- 8 -- 9 -- 10 -- 11 VN Sensor Interface Negative Output 12 VDDP Sensor Interface Positive Excitation 13 -- 14 -- Notes 10 VDC Maximum ±10 Linearity NPA Pinout Max ±0.25 5 psi to 30 psi Manifold 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 No Port Design (All measurements given in mm) 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, 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”H20(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 Contact GE for custom pressure ranges. Refer to application guide 910-289 for more information. Product is RoHS:2010 compliant. Warranty GE 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. GE reserves the right to make changes without further notice to any products herein. GE makes no warranty, representation or guarantee regarding the suitability of its products for any particular application. GE 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. www.ge-mcs.com 920-477D © 2011 General Electric Company. All Rights Reserved. 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