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DAT-0033, Rev1.0

CPS121-700

Digital Barometer

Water Resistant

Consensic

Overview

The CPS121-700 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 CPS121-700 solution simple to use.The CPS121-

700includes 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:±2kPa (±20.0mbar) @ 0°C to

50°C , 30kPa to 700kPa

 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