Pressure Sensors, Mass Flow Sensors & Oxygen Sensors is our Experience

The CPS121 is an absolute pressure sensor solution with a fully-calibrated pressure and temperature-compensated digital output for pressure ranges from 300-1200 mbar (30-120 kPa). Excellent accuracy of ±1.7 mbar and an operating supply voltage range 2.3V to 5.5V targets battery and other low-power applications.

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The CPS121 includes a resistive type bridge pressure sensor and a 24-bit ADC for high resolution and accurate pressure measurements. An integrated sigma-delta-based ADC combined with internal calibration logic provides accurate pressure and temperature measurements to the application via the I²C interface. There is no need to separately download internal calibration coefficients and have the host microcontroller conduct complicated compensation calculations.

Benefits

• Low power consumption, excellent for battery and other low power applications
• External clock not required
• High resistance to sensing media

Features

• Factory calibrated pressure and temperature sensor for 300 mbar up to 1200 mbar (approximately 4 psi to 17 psi)
• Supply voltage: 2.0V to 5.5V
• Operating temperature range: -40°C to +85°C
• Pressure Accuracy: ±0.1 kPa from 0°C to 50°C, 95 kPa to 105 kPa
• Temperature accuracy: ±1.0°C
• Sleep state current consumption: <200nA at 25°C
• Top side sensing port

Applications

• Altimeters
• Portable and stationary barometers
• Weather stations
• GPS applications
• Hard disk drives
• Industrial equipment
• Air control systems
• Vacuum systems