CPS129 Pressure Absolute Accuracy ±0.1kPa (±1.0mbar) @ 0°Cto 50°C, 95kPa To 105kPa

Overview

The CPS129 is a System-in-a-Package (SIP) solution featuring a resistive bridge type pressure sensor coupled with a 24-bit ADC, offering high resolution and precise pressure measurements. This sensor provides fully calibrated pressure and temperature compensated digital output via an I²C interface, eliminating the need for complex compensation calculations by the host microcontroller.

Applications

The CPS129 is suitable for a wide range of applications including:

• Waterproof designs
• Medical devices
• 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: Ideal for battery-powered applications, with current consumption optimized for energy efficiency.
• No External Clock Required: Simplifies system design and reduces component count.
• High Resistance to Sensing Media: Ensures durability and reliability in various environments.

Features

• Factory Calibrated Pressure and Temperature Sensor: Provides accurate measurements out of the box.
• Supply Voltage: Operates within a wide range of 2V to 5.5V, with a typical operating voltage of 3V.
• Average Current Consumption: Consumes less than 5µA per measurement, optimizing power usage.
• Sleep State Current Consumption: Ultra-low power consumption of less than 200nA at 25°C.
• Operating Temperature Range: Wide operational temperature range from -40°C to +85°C, suitable for harsh environments.
• Pressure Absolute Accuracy: ±0.1kPa (±1.0mbar) at 0°C to 50°C, between 95kPa to 105kPa.
• Pressure Relative Accuracy: ±0.01kPa (<1mbar).
• Temperature Accuracy: ±1.0°C.

Interfaces

• I²C Interface: Supports communication up to 400kHz, allowing for straightforward integration with microcontrollers and other devices.

Physical Characteristics

• Small Form Factor: Compact dimensions of 3 x 5 x 1.2mm (width x length x height), suitable for space-constrained applications.
• LGA Package, 8 Lead: Surface-mounted package with 8 leads, enhancing reliability and ease of assembly.
• Top Side Sensing Port: Facilitates direct exposure to the sensing media, optimizing sensor performance in various measurement environments.