ENS220 Barometric Pressure & Temperature Sensor

The ENS220 is an extremely low-power, highly accurate barometric pressure and temperature sensor. It has digital I2C and SPI interfaces and is packaged in the smallest LGA package. This opens up new applications in liquid and fall level sensing, interior navigation and localization, and activity tracking.

The ENS220’s capacitive pressure sensor is integrated on a CMOS ASIC. Due to the capacitive read-out of this single die solution, ultra-low current consumption is also achieved while maintaining good resilience to changes in environmental conditions in small form factor packaging.

KEY FEATURES

• Absolute / Relative accuracy: ±0.5 hPa / ±0.025 hPa (±2.5Pa is equivalent to a height of ±20 cm in air)
• Lowest Power: average supply current of 0.1 μA at idle, 0.8 μA when sampling at 1/60 Hz
• Ultra-low noise of 0.1 Pa rms (≈1 cm in air) at 2 Hz sample rate
• User-configurable sample rate up to 1 kHz (0.9 Pa rms)
• Temperature accuracy of 0.1 K with 8 mK resolution
• Fully digital interface with best-of-breed form factor

KEY BENEFITS

• Reliable cm resolution positioning and differential pressure measurements
• Perfectly integrates into space-constraint designs, e.g. mobiles, wearables, hearables
• Long battery life even at high sampling rates
• Minimal peripheral BOM requirements