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Digital Barometric Pressure Sensor - S121
Digital Barometric Pressure Sensor - S121
PN: S121
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Digital Barometric Pressure Sensor
The S121 system-in-a-package (SIP) solution comprises of aresistive bridge type pressure sensor and a 24-bit ADC for high resolution and accurate pressure measurements. The fully calibrated pressure and temperature compensated digital output makes the S121 solution simple to use.
The S121 includes internal calibration logic that provides accurate pressure and temperature measurements to the application via the SPI or I²C interface.There is no need to separately download internal calibration coefficients and have the host microcontroller perform complicated compensation calculations.Applications- Smartphones
- Wearables
- Altimeters
- Portable and Stationary Barometers
- Weather Stations
- GPS Applications
- Hard Disk Drives(HDD)
- Industrial Equipment
- Air Control Systems
- Vacuum Systems
Benefits- Low Power Consumption
- Excellent for Battery Applications
- External Clock not Required
- High Resistance to Sensing Media
Features- Factory Calibrated Pressure and Temperature Sensor
- Supply Voltage: 2V to 5.5V(3V @typical)
- Average Current Consumption: <5uA (One Measurement)
- Sleep State Current Consumption: <200nA (25°C)
- Operating Temperature Range: -40°C to +85°C
- Pressure Absolute Accuracy: ±0.1kPa (±1.0mbar) @ 0°C to 50°C, 95kPa to 105kPa
- Pressure Relative Accuracy: ±0.01kPa(<1m)
- Temperature Accuracy: ±1.0°C
Interfaces- I²C (up to 400kHz)
- SPI (Half-Duplex, 3-Wire)
Physical Characteristics- Small Form Factor, 3 x 5 x 1.2mm (w x l x h)
- LGA Package, 8 Lead
- Top Side Sensing Port
