CPAP Pressure Sensor: CP201

Today’s advanced PAP devices include two separate pressure sensors, a differential pressure sensor for air flow measurement and a gage sensor for airway pressure measurement. The CP Series is a unique, highly integrated, dual sensor offering incorporating a differential pressure sensor and a gage pressure sensor. The level of integration and accuracy offers significant advantages over competing solutions:

Reduces board space and design complexity
Decreases the number of components, which improves reliability
Advanced digital filtering eliminates critical pneumatic noise
Multi-Range™ technology allows the same device to be used in multiple PAP product variations, which streamlines manufacturing and reduces inventory.

The CP201 is a shared-port dual sensor solution.

Download Specification

Superior’s CP Series sensor module family builds upon the industry’s performance leading SP Series NimbleSense™ architecture. For reference, the SP Series integrates an advanced piezoresistive sensing element, ADC, DSP and processor intelligence. Available in shared 3-port and dedicated 4-port configurations for maximum design flexibility, the CP Series is a true sub-system that integrates two distinct pressure sensors (Differential & Gage). With the industry’s best performance, highest integration and lower system BOM, the CP Series is the ideal solution for Sleep Apnea and other respiratory applications.

Industry leading performance – The CP Series measures dry air and non-aggressive gas pressure with very high accuracy and a stable zero point. Non-linearity is also industry leading and typically within ±0.15% of selected range.

The CP Series employs the proprietary NimbleSense™ architecture to create the industry’s widest dynamic range and highest performing products supporting ranges as low as ±250 Pa for the differential pressure sensor to as high as ±6 kPa for the gage pressure sensor. Competing solutions degrade as the pressure ranges are lowered; but the CP Series with Multi‐Range capability maintains optimal performance down to even ±250 Pa.

Optional advanced filtering – With advanced filtering to remove unwanted noise from the fan output, noise induced mixing errors are virtually eliminated.

Constructed with a high reliability plastic enclosure, the CP Series family provides the ideal combination of very high performance and reliability while ensuring customers have a high volume, extremely cost-effective solution optimized for their Sleep Apnea system requirements.

• Dual-sensor air flow controller sub-system designed for BiPAP, APAP and CPAP machines

• Highly Integrated, combining two pressure sensors in one device: differential and gage

• Multi-RangeTM – 4 calibrated ranges per sensor

• CP Series Subsystem Enables Selectable:

o Differential Range (±250 Pa to ±2.5 kPa)

o Gage Range (±2 kPa to ±6 kPa)

o Bandwidth (25Hz to 250Hz)

• 16-bit resolution each channel range

• Ultra low noise, 17.5-bit Effective Resolution

• Very High Accuracy ±0.05% of Selected Range

• Excellent Long Term Stability

• Output Update Rate up to 500Hz