Introducing UNI: The Universal Amplifier for Virtually Any Sensor

At Dewesoft, one amplifier has always meant more possibilities. With the launch of the new generation UNI® universal amplifier, that idea goes further than ever.

The new UNI amplifier brings exceptional flexibility to multiple Dewesoft DAQ product lines and form factors. From voltage, current, strain, vibration, and temperature to resistance, pressure, and displacement, UNI gives engineers a single, powerful platform for handling a wide range of measurement challenges.

Dewesoft’s most versatile amplifier yet

The new UNI amplifier family represents a significant step forward in measurement flexibility. By supporting nearly every common sensor technology, providing advanced isolation options, and delivering sampling rates up to 500 kS/s, UNI simplifies instrumentation while expanding measurement possibilities.

Key benefits at glance:

• Connect almost any sensor type

• Easy setup and operation

• Up to 500 kS/s sampling rate

• High-dynamic 24-bit Sigma-Delta ADC

• Galvanic isolation options

• TEDS Class 1 & 2 support

• DSI adapter compatibility

• Available across IOLITE, OBSIDIAN, and SIRIUS X platforms

Connect almost any sensor

The new UNI amplifier supports an exceptionally broad range of sensor types and input modes:

• Voltage

• Current

• Strain and stress

• Full, half, and quarter bridge sensors

• Resistance

• Potentiometers

• Pressure sensors

• Noise and vibration (IEPE)

• RTD temperature sensors

The amplifier also supports DSI adapters which further expanding measurement capabilities to:

• Charge sensors

• LVDT displacement sensors

• Thermocouples

By covering such a wide range of measurement technologies in one amplifier family, UNI helps engineers simplify their setups today while staying ready for the measurement needs of tomorrow.

Designed for modern measurement challenges

The new UNI combines ease of use with premium performance and safety:

• Galvanic isolation

• TEDS Class 1 and Class 2 support

• High-dynamic 24-bit Sigma-Delta ADC

• Up to 500 kS/s sampling rate

• Programmable excitation voltage and current

• Support for virtually any sensor type

Whether you're performing structural testing, NVH analysis, industrial monitoring, aerospace qualification, automotive validation, or educational research, UNI adapts to your application.

Powerful capabilities

Key specifications include:

• Input modes: Voltage, Full/Half/Quarter Bridge (3-wire, 4-wire, Constant Current), IEPE, Potentiometer, RTD, Resistance, and 20 mA Current

• Input ranges: ±100 V, ±10 V, ±1 V, ±100 mV

• Input coupling: DC, AC 0.15 Hz (1 Hz, 3 Hz, 10 Hz per SW)

• Excitation voltage:

  • Unipolar: 24 V DC

  • Bipolar: ±12 V DC

  • Fully programmable via 16-bit DAC

• Excitation current:

  • 0.1, 1, 2, 5, 10, 20, and 100 mA

  • Fully programmable via 16-bit DAC

• IEPE current excitation: 2, 4, 8, 12, 16 and 20 mA

• Direct current: Direct 20 mA input with integrated 50 Ω shunt

• Bridge measurements: 120 Ω and 350 Ω bridge completion resistors and 100 kΩ shunt resistor

• Input impedance: 2 MΩ between IN+ and IN- (100 V range), >1 GΩ (all other ranges)

• Isolation: 

  • Channel-to-channel and channel-to-ground isolation for maximum protection and measurement integrity.

  • Higher channel density while maintaining excellent signal quality and preventing the ground loops.

UNI for IOLITE® and OBSIDIAN® data acquisition systems

For distributed and modular measurement systems, UNI brings its flexibility to the IOLITE and OBSIDIAN product families. Engineers can use it as an interchangeable DAQ card in IOLITE and OBSIDIAN rack-based data acquisition systems, or as a stand-alone IOLITE DAQ module for cabinet installations and benchtop applications.

IOLITEir-4xUNI – fully isolated module

The IOLITEir-4xUNI module offers

• Input channels: 4

• Sampling rate: Up to 40 kS/s

• ADC: 24-bit sigma-delta ADC

• Isolation: Channel-to-channel & channel-to-ground isolation

• Input connector: D-SUB9

• Availability: IOLITE rack and OBSIDIAN DAQs

IOLITEr-8xUNI and IOLITE-8xUNIT – high density UNI modules

• Input channels: 8 channels

• Sampling rate: Up to 40 kS/s

• Isolation: Channel-to-ground isolation

• Input connector: D-SUB37 connectors

• Availability: IOLITE modular, IOLITE rack and OBSIDIAN DAQs

IOLITErw-6xUNI - watertight module for OBSIDIAN R8w

• Input channels: 6 channels

• Sampling rate: Up to 20 kS/s

• Isolation: Channel-to-ground isolation

• Input connector: D-SUB9 connectors

• Availability: OBSIDIAN R8w racks

UNI for IOLITE® X SIRIUS® X data acquisition systems

In Dewesoft’s X-line products, the new UNI amplifiers reach their full potential, delivering industry-leading performance with sampling rates up to 500 kS/s. X-line devices are built for easy connectivity, featuring a GLAN interface with PTP time synchronization and active Power over Ethernet.

Within the IOLITE® X and SIRIUS® X product families, UNI amplifiers are fully compliant with the openDAQ SDK and ready for integration into virtually any environment through the open-source SDK. 

Beyond data acquisition, they support online processing, data logging, and advanced integration workflows.

IOLITEi-X-4xUNI

Fully isolated UNI amplifiers bring maximum performance to the IOLITE® X platform, with sampling rates up to 500 kS/s for demanding measurement applications.

The IOLITEi-X-4xUNI is a compact, 4-channel universal amplifier with D-SUB9 input connectors, combining high-speed data acquisition with the advanced connectivity of the IOLITE X series. It supports Gigabit Ethernet communication with precise PTPv2 synchronization and Power over Ethernet operation using a 48 to 57 VDC power supply.

Designed for flexible, distributed installations, the IOLITEi-X-4xUNI can be DIN rail mounted and daisy-chained for power, data, and synchronization using a single standard network cable. This makes it an ideal solution for scalable, high-performance measurement systems where simplicity, speed, and reliability are essential.

SIRIUSi-X-8xUNI

The SIRIUSi-X-8xUNI combines the versatility of the UNI® universal amplifier with the performance and reliability of the SIRIUS® X platform. With eight fully isolated input channels and standard D-SUB9 connectors, it is designed to handle a wide range of measurement challenges with a single instrument. Alternative connector options are available on request.

In addition to high-speed Gigabit Ethernet connectivity, PTPv2 synchronization, and optional Power over Ethernet, the unit includes two integrated CAN FD ports on the rear panel. This makes it an excellent choice for automotive testing, control applications, and modern vehicle network analysis.

From automotive and aerospace testing to industrial monitoring, civil engineering, and research laboratories, the SIRIUSi-X-8xUNI adapts to virtually any measurement task. Its broad sensor support, combined with full galvanic isolation that helps protect both users and equipment, delivers exceptional flexibility without compromising safety or performance.

High-density UNI X solutions

For applications that demand high channel counts without compromising performance, the channel-to-ground isolated UNI configuration delivers the ideal combination of channel density and speed, with sampling rates of up to 200 kS/s.

IOLITE-X-8xUNI-D37

The IOLITE® X-8xUNI-D37 brings eight universal input channels into a compact and efficient IOLITE X form factor. Equipped with D-SUB37 connectors, it provides a practical solution for larger measurement setups where flexibility, scalability, and streamlined wiring are essential.

With its high channel density, the IOLITE X-8xUNI-D37 is especially well suited for automotive, aerospace, and industrial testing applications where multiple sensor types need to be acquired simultaneously.

SIRIUS-X-16xUNI

The SIRIUS® X-16xUNI delivers exceptional measurement density without sacrificing flexibility. With 16 universal input channels and D-SUB9 connectors, it enables engineers to connect and acquire data from a wide range of sensor types using a single, versatile instrument.

Its high channel count makes it especially well suited for aerospace testing, structural monitoring, and demanding automotive applications such as road load data acquisition. At the same time, UNI amplifier technology gives the SIRIUS X-16xUNI the flexibility to adapt to a broad range of test and measurement tasks, making it a powerful all-in-one solution for laboratories, test facilities, and field applications.

By combining measurement density with broad sensor support, the SIRIUS X-16xUNI helps engineers simplify complex setups using a single amplifier platform.