Digital Output Pressure Sensors

Digital pressure sensors are a fundamental building block for modern industrial applications in the context of IIoT and increasing connectivity. DDM Sensors develops application-specific digital pressure sensors tailored precisely to the requirements of your application.

Development of Pressure Sensors with Digital Interfaces

DDM Sensors specializes in the development of miniaturized pressure sensors and offers digital interfaces including IO-Link, Modbus RTU, CAN bus, and I²C for custom pressure sensor configurations:

IO-Link Pressure Sensors

Our IO-Link pressure sensors enable the transmission of process and diagnostic data as well as parameterization directly during operation, such as adjusting the measuring range. During development, we define customer-specific cycle times to optimally match performance to your application. Integration is simplified through standardized IODD files (IO-Link Device Description), which contain all necessary control information.

Modbus RTU Pressure Sensors

As an established and widespread fieldbus protocol, Modbus RTU enables the addressing and operation of multiple sensors on a single bus. Communication is based on the robust serial RS-485 standard, ensuring reliable data transmission even over longer distances. Our DDM implementation is engineered for maximum reliability and compatibility, with update rates flexibly adaptable to the dynamics of your measurement task.

CAN Bus Pressure Sensors

Thanks to high transmission rates and real-time capabilities, the CAN bus is the ideal interface for dynamic applications, particularly in mobile machinery, commercial vehicles, and the automotive sector. DDM Sensors’ pressure sensors support standardized CANopen and J1939 protocols to ensure broad compatibility. CAN ID, update rate, and baud rate are fully configurable and can be seamlessly optimized for bus load and application requirements.

I²C Pressure Sensors

The I²C interface is ideal for the direct PCB-level integration of our pressure sensors into OEM applications. It enables sufficient data rates for board-to-board communication over short transmission distances with minimal wiring effort (two lines). Leveraging our embedded systems expertise, we realize compact, highly integrated solutions that embed directly into your electronics.

Detailed Technical Specifications of Our Digital Pressure Sensors

Our miniaturized digital output pressure sensors combine proven measurement technology with the benefits of modern digital interfaces.

Parameters such as resolution and update rate are application-defined to guarantee optimal performance.

Dimension	Range Across All DDM Pressure Sensors
Available Measurement Principles	Relative (gauge), absolute, and differential pressure
Measuring Ranges	0.1 bar (100 mbar) to 250 bar
Accuracy (Total Error of FS)	≤ 0,25 % to ≤ 1,5 %
Temperature Range	Operating temp: –40 to +150 °C; Media temp: up to +180 °C
Dimensions (ø × Length)	Diameter ø 10 to ø 26.9 mm Length approx. 19 to 68 mm
Media Compatibility	Wetted parts entirely made of stainless steel 1.4404 and 1.4435 (316L) – suitable for all media compatible with these materials
IP Protection Rating	IP65 to IP67

Advantages of Digital Pressure Sensors Over Analog Pressure Sensors

Pressure sensors with digital outputs ensure high immunity to interference and excellent signal quality thanks to protocol-based transmission. Bidirectional communication allows not only the reading of measured values but also operational sensor parameterization and access to advanced diagnostic functions.

Switching to digital sensors is particularly worthwhile when high data quality, flexible configuration, or integration into complex control systems and networks are required.

Application Areas of Digital Pressure Sensors

Thanks to their flexibility and performance, our digital pressure sensors are suitable for a wide range of industries and applications. Key application areas include:

• Mechanical and plant engineering
• Mobile hydraulics and commercial vehicles
• Test bench technology
• Laboratory applications

In addition, they are deployed in the process industry and forward-looking sectors such as renewable energies, including hydrogen applications.

Seamless Integration into Your Systems

We actively support you in integrating our digital pressure sensors into your systems. Connection to standard PLC and control systems is facilitated by providing necessary configuration files such as IODD for IO-Link or EDS files for CANopen.

When required, we provide technical support and programming examples. The experts at DDM Sensors are happy to accompany you during commissioning to ensure a smooth and fast implementation.

Your Partner for Custom Digital Pressure Sensors

We develop digital pressure sensors engineered to your exact requirements. With our in-house hardware and firmware development capabilities, we can flexibly adapt protocols and parameters. Contact us for an individual consultation or request a direct quote for your specific application.