Superior Sensor Technology CP Dual Low-Pressure Sensors
Superior Sensor Technology CP Dual Low-Pressure Sensors are highly integrated devices with an analog-to-digital converter (ADC) and digital signal processor (DSP). The CP sensors combine differential and gauge sensors into one module. When used for CPAP applications, these sensors employ the NimbleSense™ proprietary architecture that achieves a high dynamic range. The CP components offer a 4V maximum voltage rating, 25mA maximum current rating, and -20°C to +85°C operating temperature range. Two variants are available: the CP201 offers a 3-port configuration and the CP301 a 4-port configuration. Superior Sensor Technology CP Dual Low-Pressure Sensors are designed with a high-reliability plastic enclosure creating an ideal combination of high performance and reliability while ensuring a solution optimized for a wide array of CPAP devices.
Features
- 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-Range™, 4x calibrated ranges per sensor
- Subsystem enables selectable:
- ±250Pa to ±2.5kPa differential range
- ±2kPa to ±6kPa gage range
- 25Hz to 250Hz bandwidth
- 16-bit resolution each channel range
- Ultra-low noise, 17.5-bit effective resolution
- Very high accuracy, ±0.05% of the selected range
- Excellent long-term stability
- Output update rate up to 500Hz
- Temperature-compensated from +5°C to +50°C
- Supply voltage compensation
- Standard I2C and SPI interface
- Available in 3-port (CP201) and 4-port (CP301) configurations
- Advanced multi-order filter to eliminate critical fan output noise (optional)
Applications
- Continuous Positive Airway Pressure (CPAP) machines
- Bi-level Position Airway Pressure (BiPAP) machines
- Automatic Positive Airway Pressure (APAP) machines
Specifications
- ±25mA I/O current
- 2.8V to 3.5V supply current
- 10µF typical supply capacitance
- 2.0Pa position sensitivity
- 16-bit resolution
- 15.7-bit system ENOB
- 498Hz typical data update rate
- Reset
- 0.75V to 1.36V power-on reset threshold
- 40ms maximum interface detect delay
- 60ms maximum first response settling time
- 15µs minimum external reset low
- 7pF typical input capacitance
- -10µA typical internal pull-up current
- 0.6V maximum input/output low voltage
- SPI
- 8µs minimum clock cycle time
- 100µs minimum byte-to-byte cycle time
- I2C
- 100kHz to 400kHz SCL clock frequency range
- 15µs typical clock stretch time, 100µs maximum
- 100M pressure cycle durability
- Temperature ranges
- +5°C to +50°C compensated
- -20°C to +85°C operating
- -40°C to +85°C storage
- 0 to 95% relative humidity, non-condensing
Videos
System Overview
Featured Sensors
Superior Sensor Technology CP201 Dual Low Pressure Sensor
Highly integrated sensor with ADC and DSP, combines differential and gauge sensors into one module.
Superior Sensor Technology CP301 Dual Low-Pressure Sensor
Highly integrated sensor with ADC and DSP, combines differential and gauge sensors into one module.
Related Development Tools
Superior Sensor Technology EB02 Differential Pressure Sensor Evaluation Board
Enables rapid evaluation testing of 2-port sensors with excellent data logging capabilities.
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Superior Sensor Technology KP-ROR 90° Port Adapters
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Published: 2022-07-27
| Updated: 2025-03-12