GE Sensing & Inspection Technologies NPA Surface-Mount Pressure Sensor Series The NPA product series is provided in a miniature size as a cost e ective solution for applications that require calibrated performance. Packaged in a SOIC14 pin surface mount, the NPA Series is available in Gage, Absolute or Di erential pressure ranges with either mV, ampli ed analog or digital outputs. The sensor is intended for printed circuit board mounting and delivered in optional tape and reel form to simplify manufacturing handling. Features Surface Mountable Di erential, Gauge, Absolute & Low Pressure 10 H2O to 30 PSI Full Scale Analog Ampli ed Analog or Digital Output Uncalibrated mV Output Option Digital pressure signal: 14 bit ADC / 11 bit DAC On chip temperature sensor in digital mode Operating temperature range of -40 to 125C Total Error Band < 1.5% FSO 60X overpressure on ranges <1 PSINPA Engineering Speci cation Parameter Value Units Notes Environmental Temperature Range Operating -40 to +125 C -40 to +257F Compensated 0 to 70 C +32 to +157F Storage -40 to +125 C -40 to +257F Mechanical Weight ~1 grams Media Compatibility Positive di erential and gage Compatible with exposed materials 1 ports Negative di erential ports Dry gases only Parameter Units MinTypMaxNotes Common Parameters Accuracy (Total Error Band) %FSO -1.5 1.5 Response Time ms 1 2 Pressure Overload <1psi FS range full scale 60X Pressure Overload 5psi to 30psi full scale 2X Resolution 11bit DAC Pressure ranges 10H2O 30psi Digital Performance Resolution 14bit ADC16383 steps Sampling Rate kHz 1 Digital Serial Output Temperature Sensor Accuracy 4C 8bit Analog Performance Parameters 5 volt Excitation O set Volts 0.44 0.5 0.56 Span Volts 4 Analog Performance Parameters 3.3 volt Excitation O set Volts 0.46 0.5 0.54 Span Volts 2.5 Notes: 1. Exposed materials are thermoset plastic, silicon, epoxy, RTV, and pyrex. NPA Uncalibrated Performance Parameter Value Units Notes Pressure Range 0.36 to 30 psi 10H2O = 0.361psi = 2.49KPa Excitation 1.5 mA 10 VDC Maximum Input Impedance 500020% Output Impedance 500020% Zero O set 75 mV Full Scale Output (10H2O) 40 to 120 mV Full Scale Output (1psi) 75 to 135 mV Full Scale Output (5 psi to 30psi) 100 to 166 mV Full Scale Output (15psi & 30psi) 75 to 135 mV Linearity 0.25%FSO Pressure Hysteresis 0.02 %FSO Temperature Coe cient of Zero +30 V/ V / C Temperature Coe cient of Resistance 0.29 % /C Temperature Coe cient of Sensitivity -0.2 %FSO/C Thermal Hysteresis of Zero 0.2 %FSO Position Sensitivity 0.1 %FSO