Amphenol Advanced Sensors

NPI-19 Media-Isolated Digital I²C Pressure Sensors

Amphenol Advanced Sensors NPI-19 sensors are designed for hostile environments while providing a silicon sensor’s sensitivity, linearity, and hysteresis

Image of Amphenol Advanced Sensors' NPI-19 Media-Isolated Digital I2C Pressure Sensors Amphenol Advanced Sensors NPI-19 digital I²C pressure sensors are a member of the NovaSensor NPI series and incorporate isolated sensor technology with I²C interface protocols for ideal performance and cost. These sensors are designed to operate in hostile environments while providing the outstanding sensitivity, linearity, and hysteresis of a silicon sensor. The piezoresistive sensor chip is housed in a fluid-filled cylindrical cavity and isolated from measured media by a stainless steel body and diaphragm. The NPI product lines offer a modular design that allows for a variety of pressure sensor port modules that are hermetically welded to the sensor header. These sensors monitor pressure in industrial, medical, and transportation applications by producing a voltage output that is linearly proportional to the input pressure. As with all NovaSensor silicon sensors, the NPI series employs SenStable® processing technology, providing excellent output stability.

Resources

Features and Benefits
  • No port or threaded process fittings
  • Linearity: ±0.25% FSO (BFSL)
  • Total error band: ±1% FSO
  • I²C interface protocols
  • 14-bit I²C output
  • Absolute and gauge pressure
  • Pressure ranges: 2.5 psi (17 kPa) to 300 psi (2068 kPa)
Applications
  • Industrial process controls
  • Corrosive fluid and gas measurement
  • Hydraulic systems and valves
  • Tank level measurements
  • Barometric pressure measurement
  • Ship and marine systems
  • Aircraft and avionics systems
  • Medical equipment
Updated: 2025-07-16
Published: 2021-12-02

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NPI-19-I²C Evaluation Kit Amphenol Advanced Sensors’ NPI-19-I²C Nova Sensor evaluation kit was designed to allow quick evaluation of I²C pressure sensors for customer applications.

Related Product Training Modules

NPI-19 Harsh Environment Digital I²C Pressure Sensor This presentation will review pressure sensor basics and discuss the advantages,typical applications, and specifications.