NPH Series Solid State Medium Pressure Sensors Applications Features • • • • • • • • Process control, P-to-I converters Pneumatic control systems HVAC controls Biomedical: Infusion pumps, sphygmomanometers, respirators • Aerospace: Altimeters, barometers, cabin pressure sensors • Computer peripherals • • • • • • • • Amphenol Advanced Sensors Solid state, high reliability Standard TO-8 package suitable for PC board mount Low cost , small size Available in gauge, absolute, and differential pressure versions Media compatible with non-corrosive gases and dry air Typical FSO 100 mV @ 1.5 mA Thermal accuracy FSO 0.4% typical Overpressure capability to five times maximum rated pressure Three standard ranges: 15, 30 and 100 psi (1, 2 and 7 bar) Nonlinearity 0.05% FSO typical Standard 3/16 in OD pressure port Ceramic substrate with temperature compensation resistors NPH Series Specifications Description An integrated circuit silicon sensor chip is housed in a standard TO-8 electrical package that is printed circuit board mountable. output stability. Constant current excitation to the sensor produces a voltage output that is linearly proportional to the input pressure. The latest techniques in micromachining have been used to ion-implant piezoresistive strain gauges into a wheatstone bridge configuration that is integrally formed on a micromachined silicon diaphragm. As with all NovaSensor silicon sensors, the NPH Series employs SenStable® processing technology, providing excellent The user can provide standard signal conditioning circuitry to amplify the 100 mV output signal. The sensor is compatible with most non-corrosive gases and dry air. Parameter Value Units Notes General A laser-trimmed, thick-film resistor network on a hybrid ceramic substrate provides temperature compensation. Parameter Units Min. Type Max. Notes Performance Parameters(7), Compensated(1), 100, 200 and 700 kPa Pressure Range 0 to 15 psi (0 to 1 bar) 0 to 100 kPa Offset mV –2 1 2 0 to 30 psi (0 to 2 bar) 0 to 200 kPa Full Scale Output mV 75 100 125 2 0 to 100 psi (0 to 7 bar) 0 to 700 kPa Linearity %FSO –0.1 0.05 0.1 3 rated pressure (8) %FSO –0.05 0.01 0.05 Electrical @ 77°F (25°C) Unless Otherwise Stated Hysteresis and Repeatability Input Excitation 1.5 mA 2 mA maximum Thermal Accuracy of Offset Insulation Resistance 108 Ω @ 50 VDC 100 kPa %FSO –0.6 0.4 0.6 4 %FSO –0.5 0.2 0.5 4 Maximum Pressure 4x Input Impedance 4000 Ω ±20% 200 and 700 kPa Output Impedance 5000 Ω ±20% Thermal Accuracy of FSO Bridge Impedance 5000 Ω ±20% 100 kPa %FSO –0.6 0.4 0.6 4 Environmental 200 & 700 kPa %FSO –0.5 0.2 0.5 4 Temperature Range Thermal Hysteresis %FSO –0.1 0.05 0.1 5 Operating Compensated Vibration Shock Life (Dynamic Pressure Cycle) Short-Term Stability of Offset µV/V 5 6, 11 Short-Term Stability of FSO µV/V 5 6, 11 (9) –40 to 257 32 to 158 10 100 1 x 106 °F °F gRMS g cycles (-40°C to 125°C) (0°C to 70°C) 20 to 2000 Hz 11 milliseconds 1. Performance with offset , thermal accuracy of offset , and thermal accuracy of FSO compensation resistors. Mechanical (1) Weight <0.2 oz (<5 g) Media Compatibility Non-corrosive gases and clean, dry air 3. Best fit straight line. 4. 32°F to 158°F (0°C to 70°C) with reference to 77°F (25°C) Wetted Materials Top Port 2. FSO with 1.5 mA input excitation. Nickel, gold plated Kovar, silicone gel, gold wire, RTV, silicon and glass. Bottom Port Gold plated Kovar, silicon, glass and RTV (10) 5. 32°F to 158°F (0°C to 70°C), by design. 6. Normalized offset/bridge voltage—100 hrs, typical value, not tested in production. 7. All values at 77°F (25°C) and at 1.5 mA, unless otherwise noted. 8. Topside pressure. Backside pressure maximum pressure is 250 psi (17.23 bar) or 4x rated pressure, whichever is less. 9. Reduced performance outside compensation range. 10. Backside differential tube is nickel or Kovar. 11. Typical specifications are for reference only; absolute values may vary. NPH Series Specifications NPH Series schematic diagram NPH Series package diagram NPH Series Specifications Ordering Information The code number to be ordered may be specified as follows: NPH Code Package Configuration 8 TO-8 Code 100 200 700 Pressure Range (kPa) 100 kPa; 15 psi (1 bar) 200 kPa; 30 psi (2 bar) 700 kPa; 100 psi (7 bar) Pressure Absolute Gauge Differential Code A G D Code H NPH - ____ _ ____ Amphenol Advanced Sensors _ ____ _ Compensation Hybrid substrate ____ Typical model number www.amphenol-sensors.com © 2014 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-920-314B-08/2014