Digital environmental sensor combines relative humidity, barometric pressure and temperature sensing in a compact 8-pin metal-lid LGA package. It operates over a pressure range of 300 hPa to 1100 hPa and a temperature range of -40°C to 85°C. The device supports I2C and SPI interfaces with VDD from 1.71 V to 3.6 V and VDDIO from 1.2 V to 3.6 V. Typical average current is 3.6 µA at a 1 Hz refresh rate when humidity, pressure and temperature are measured. The package measures 2.5 mm by 2.5 mm by 0.93 mm and is RoHS compliant, halogen-free and MSL1 rated.
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| Pressure operating range | 300...1100hPa |
| Temperature operating range | -40...85°C |
| Supply voltage VDDIO | 1.2...3.6V |
| Supply voltage VDD | 1.71...3.6V |
| Interface | I²C and SPI |
| Average current consumption at 1 Hz, humidity and temperature | 1.8 typicalµA |
| Average current consumption at 1 Hz, pressure and temperature | 2.8 typicalµA |
| Average current consumption at 1 Hz, humidity, pressure and temperature | 3.6 typicalµA |
| Sleep mode current consumption | 0.1µA |
| Humidity response time τ63% | 1s |
| Humidity accuracy tolerance | ±3%RH |
| Humidity hysteresis | ≤2%RH |
| Pressure RMS noise | 0.2Pa |
| Pressure sensitivity error | ±0.25% |
| Pressure temperature coefficient offset | ±1.5Pa/K |
| Package pins | 8 |
| Package dimensions | 2.5 x 2.5 x 0.93mm |
| RoHS | Compliant |
| Halogen-free | Yes |
| Msl | 1 |
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