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.
