SDP800
Differential Pressure Sensor
- No offset, no zero-point drift, hysteresis free
- Outstanding accuracy and long-term stability
- Pressure range of up to ±500 Pa (±2 inch H2O / ±5 mbar)
- Excellent accuracy and repeatability (even below 1 Pa)
- Fully calibrated and temperature compensated (-20° C to +85° C)
- For air and non-aggressive gases
- Suited for standard wave soldering
Product Description
The SDP800 sensor family is Sensirion’s series of digital differential pressure sensors designed for high-volume applications.
The sensors measure the pressure of air and non-aggressive gases with superb accuracy and no offset drift. The sensors cover a pressure range of up to ±500 Pa (±2 inch H2O / ±5 mbar) and deliver outstanding accuracy, also at the bottom end of the measuring range.
The SDP800 Series features a digital 2-wire I2C interface, which makes it easy to connect directly to a microprocessor.
The outstanding performance of these sensors is based on Sensirion’s patented CMOSens® sensor technology, which combines the sensor element, signal processing and digital calibration on a small CMOS chip. The differential pressure is measured by a thermal sensor element using flow-through technology. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.
Differential Pressure Specifications
| Parameter | SDP8xx-500Pa | SDP8xx-125Pa |
|---|---|---|
| Measurement range | -500 to 500 Pa (-2 to 2 inH2O) |
-125 to 125 Pa (-0.5 to 0.5 inH2O) |
| Zero point accuracy | 0.1 Pa | 0.08 Pa |
| Span accuracy | 3% of reading | 3% of reading |
| Zero point repeatability | 0.05 Pa | 0.04 Pa |
| Span repeatability | 0.5% of reading | 0.5% of reading |
| Span shift due to temperature variation | <0.5% of reading per 10°C | <0.5% of reading per 10°C |
| Offset stability | <0.05 Pa/year | <0.05 Pa/year |
| Flow step response time | <3ms | <3ms |
| Resolution | 16 bit | 16 bit |
| Calibrated for | Air, N2 | Air, N2 |
| Media compatibility | Air, N2, O2, non-condensing | Air, N2, O2, non-condensing |
| Calibrated temperature range | -20°C to +85°C | -20°C to +85°C |
