Description
WPAS13 is based on a MEMS differential pressure silicon pressure sensor core and a high-resolution 24- bit ΔΣADC, which can measure the pressure range of -500Pa to 500Pa with high accuracy.The WPAS13 has a low-voltage, ultra-low-power design, making it suitable for battery-powered micro- pressure monitoring systems, handheld flowmeters, etc.The sensor is packaged in a SOP16 package with a dual-tube structure. It has a very low zero-point temperature coefficient (TCO) and sensitivity temperature coefficient (TCS). The I2C digital interface output can be easily used with an MCU.
Application
- Medical: sleep apnea monitoring, oxygen concentrators, negative pressure wound therapy, airflow monitors, gas flow meters.
- Industrial: HVAC, pneumatic instruments, pressure switches, biosafety cabinets, airflow measurement, liquid level measurement.
Features
- Range: -500Pa~500Pa
- Digital interface: I2C
- Current: 5.4μA @1Hz sampling rate
- Compensated temperature range: -5~65°C
- Operating temperature range: -20~85°C
- Differential pressure measurement
- SOP16 encapsulation
- RoHs compliant, halogen-free
Specifications
| Parameters Symbolic Conditions | Min. value | Typical value | Max. value | Unit | ||
| Pressure range | TA | Operating temperature | -20 | 25 | 85 | ℃ |
| Compensation temperature | -5 | 65 | ||||
| Operating pressure range | P | -500 | 500 | Pa | ||
| Supply voltage | VDD | 1.8 | 3.6 | V | ||
| Accuracy | ACC | 500Pa~500Pa @-5~65℃ | -1 | 1 | %FS | |
| Resolution | 20 | Bit | ||||
| Operating current | IDD,LP | 1 Hz data output rate, minimum pressure and temperature oversampling rate | 5.4 | uA | ||
| Peak temperature | Ipeak | during pressure measurement | 760 | uA | ||
| Current during temperature measurement | IDDT | 541 | uA | |||
| Standby current | IDDSL | 25℃ | 0.1 | 0.3 | uA | |
| Temperature absolute accuracy | AT | @25℃ | ±0.5 | ℃ | ||
| 0~65℃ | ±1.0 | ℃ | ||||
| Long-term stability | ΔPstab | 12 months | ±TBD | hPa | ||
| Reflow soldering drift | -0.5 | +1 | Pa | |||
| Sampling rate | Fsample | 157 | 182 | TBD | Hz | |
* 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.
