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DAT-0032, Rev 1.2

CPS125

Digital Barometer

Water Resistant

Consensic

Overview

The CPS125 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 CPS125 solution simple to use.The CPS125includes

internal calibration logic that 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 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: ±0.5kPa (±5.0mbar) @ 0°Cto

50°C, 95kPa to 105kPa

 Pressure Relative Accuracy: ±0.05kPa

 Temperature Accuracy: ±1.0°C

Interfaces

 I²C (up to 400kHz)

Physical Characteristics

 Small Form Factor, 3 x 5 x 1.2mm (w x l x h)

 LGA Package, 8 Lead

 Top Side Sensing Port