| Model: | WPAS13 |
| Detection principle: | MEMS |
| Characteristics: | Differential pressure measurement, digital compensation, I²C interface |
| Standard encapsulation: | 10.26 × 7.52 × 10.30mm |
| Output signal: | I²C digital differential pressure output |
| Resolution and accuracy: | Accuracy ±1%FS; 24-bit ADC |
| Pressure Range: | -100～100kPa |
| Pressure Reference: | Differential Pressure |
| Working Temperature: | -5～65℃ |
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Description
The WPAS13 series is a digital micro differential pressure gas sensor based on a MEMS piezoresistive sensing core and a high-performance signal-conditioning circuit. The conditioning chip digitally compensates temperature linearity, zero bias and sensitivity.
The circuit includes a 24-bit Σ-Δ ADC to provide a high-precision pressure output. The sensing core and conditioning circuit are integrated into a dual-nozzle housing that reduces environmental influence on the output. Its JEDEC-compliant SOIC-16 surface-mount package supports PCB assembly.
Application
- Sleep apnea monitoring
- Oxygen concentrators
- Negative pressure wound therapy
- Airflow monitors
- Gas flow meters
- HVAC systems
- Pneumatic instruments
- Pressure switches
- Biosafety cabinets
- Airflow measurement
- Liquid-level measurement
- Consumer electronics
- Medical respiratory equipment
- Industrial differential pressure monitoring
Features
- MEMS piezoresistive differential pressure sensing
- Digital temperature compensation
- Digital linearity compensation
- Digital zero-bias compensation
- Digital sensitivity compensation
- High-resolution 24-bit ADC
- I²C digital interface
- Low average current
- Low standby current
- Dual-nozzle pressure connection
- Compact SOIC-16 surface-mount package
- High-precision pressure output
- Customizable measuring ranges
- RoHS compliant
- Halogen-free
Specifications
| Normal Pressure Range | -0.5～0.5kPa / -1～1kPa / -2～2kPa / -4～4kPa / -10～10kPa / -100～100kPa |
| Optional Pressure Range | 0～0.5kPa / 0～1kPa / 0～2kPa |
| Supply Voltage | Min 1.8V; Typical 3.3V; Max 3.6V |
| Operating Current | Typical 1.5mA |
| Standby Current | Typical 100nA |
| Average Current | Typical 5μA at 1Hz |
| ADC | 24-bit |
| Accuracy | ±1%FS |
| Response Time | Min 1.54ms; Typical 2.5ms; Max 42.18ms |
| Working Temperature | -5～65℃ |
| Storage Temperature | -40～125℃ |
| Temperature Accuracy | 1℃ |
| Digital Interface | I²C |
| Pressure Measurement | Differential Pressure |
| Package | JEDEC-compliant SOIC-16 surface-mount package with dual nozzles |
| Dimensions | 10.26 × 7.52 × 10.30mm |
| Compliance | RoHS compliant, halogen-free |
* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.
Technical Support:
Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.
The sensors don't have sleeping mode. It can be set in program if needed.
All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.
The sensor has been fully tested (not calibrated) before leaving the factory, but the module will be calibrated before leaving the factory.
However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.
15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.
Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.
Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.
Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to sales@winsensor.com
Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.
