NPH-8-007GH

NPH Series Solid State Low Pressure Sensors NovaSensor NPH Series of Solid State Low Pressure Sensors consist of an integrated circuit silicon sensor chip housed in a standard TO-8 electrical package that is printed circuit board mountable. 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 output stability. Constant current excitation to the sensor produces a voltage output that is linearly proportional to the input pressure. 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. A laser-trimmed, thick-film resistor network on a hybrid ceramic substrate provides temperature compensation. Applications Features • Process control, P-to-I converters • Solid state, high reliability • Pneumatic control systems • Standard TO-8 package suitable for PC board mount • HVAC controls • Low cost, small size • Biomedical: Infusion pumps, sphygmomanometers, respirators • Available in gauge, absolute and differential pressure versions • Aerospace: Altimeters, barometers, cabin pressure sensors • Media compatible with non-corrosive gases and dry air • Computer peripherals • Overpressure capability to five times maximum rated pressure • Thermal Accuracy: FSO 0.5% typical • Three standard ranges: 0 to 10 in H2O (0 to 25 mbar), 0 to 1 psi (0 to 0.06 bar), and 0 to 5 psi (0 to 0.34 bar) • Nonlinearity: 0.05% FSO typical • Standard 3/16 in OD pressure port Amphenol Advanced Sensors • Ceramic substrate with temperature compensation resistors NPH Series - Specifications Parameter Value Units Pressure Range 0 to 10 in H2O 0 to 1 psi (0 to 7 bar) 0 to 7 kPa 0 to 5 psi (0 to 0.34 bar) 0 to 30 kPa Maximum Pressure Notes (0 to 25 mbar) 0 to 2.5 kPa 5x rated pressure (10) Electrical @ 77°F (25°C) Unless Otherwise Stated Input Excitation 1.5 mA 2 mA maximum Insulation Resistance 100 MΩ @ 50 VDC Input Impedance 3200 Ω ±25% Output Impedance 5000 Ω ±20% Bridge Impedance 5000 Ω ±20% Operating(9) –40 to 257 °F (-40°C to 125°C) Compensated 32 to 158 °F (0°C to 70°C) Vibration 10 gRMS 20 to 2000Hz Shock 100 g (12) Environmental Temperature Range Life (Dynamic Pressure Cycle) 1 x 10 cycles