DAT-0016, Rev1.1

notice.

CPS123

Digital Barometer

Water Resistant

Consensic

Overview

The CPS123 SIP (System-in-a-Package) solution comprises of a

resistive 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 CPS123 solution simple to use. The ADC comprise of an

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 micro-controller conduct

complicated compensation calculations.

Applications

 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 and Other

Low-Power Applications

 External Clock not Required

 High Resistance to Sensing Media

Features

 Factory Calibrated Pressure and Temperature Sensor

 Supply Voltage: 2V to 5.5V

 Current Consumption: <5uA

 Sleep State Current: <200nA (25°C )

 Operating Temperature Range: -40°C to +85°C

 Pressure Accuracy: <±0.2kPa (<±2.0mbar) @ 25°C

 Temperature Accuracy: ±1.0°C

 Altitude Resolution Better Than 1.0 meter (50cm) in Active

Mode

Interfaces

 I²C

TM

* Compatible (≤400kHz)

Physical Characteristics

 Small Form Factor, 2.5 x 2 x 1mm (w x l x h)

 LGA Package, 8 Lead

 Top Side Sensing Port