The MS5534-AP is a high-resolution altimeter sensor from Intersema Sensoric SA (now TE Connectivity). It's a miniature, surface mount device designed for a variety of pressure sensing applications. The sensor integrates a pressure sensor and an ADC interface IC.

Applications:

• Altimeters and barometers
• Mobile weather stations
• Adventure or multi-mode watches
• Indoor navigation and map matching
• GPS applications

Features:

• High resolution module: 0.1 mbar
• Fast conversion down to 1 ms
• Low power consumption: 5 μA
• Integrated digital pressure sensor (24 bit ΔΣ ADC)
• Supply voltage: 2.2 V to 3.6 V
• Operating temperature: -40°C to +85°C
• No external components required

Benefits:

• Accurate altitude measurements: The high resolution allows for precise altitude readings.
• Low power consumption: Makes it ideal for battery-powered devices.
• Small size: The miniature package enables integration into space-constrained applications.
• Ease of use: Requires no external components, simplifying design and integration.
• Wide operating temperature range: Suitable for use in a variety of environmental conditions.

The MS5534-AP consists of a piezoresistive pressure sensor and a signal conditioning IC. The pressure sensor converts the pressure into an analog voltage signal, which is then digitized by a 24-bit delta-sigma ADC within the IC. The digitized pressure and temperature values can be accessed through a digital interface. The integrated temperature sensor compensates for temperature drift in the pressure sensor, ensuring accurate measurements over the entire operating temperature range.

This sensor is commonly used in devices that need accurate and reliable altitude information, even in harsh environments. Its robust design and precise measurements make it a popular choice for both consumer and industrial applications.