August 29, 2026 – The UNI-T UTG4000X series delivers high-performance, four-channel arbitrary waveform generation for demanding R&D, communications testing, embedded development, automated test, and education applications. Built around a 16-bit DAC and 2.5 GSa/s sampling rate with 2× interpolation, the series combines high waveform fidelity with extensive modulation, sweep, burst, and arbitrary waveform capabilities. Available in 100 MHz, 160 MHz, and 250 MHz models, the UTG4000X family provides a unified platform for engineers who need precise, flexible, multi-channel signal generation.
Visit the UTG4000X Series webpage here .
High-Performance Four-Channel Signal Generation
The UTG4000X series is designed around four fully capable output channels, allowing engineers to generate multiple synchronized signals without sacrificing channel performance. Unlike generators where auxiliary channels may have reduced specifications, all four UTG4000X channels provide the same high-performance architecture and can deliver up to 20 Vpp into a high-impedance load.
The series includes three models:
- UTG4104X — 100 MHz maximum sine-wave output
- UTG4164X — 160 MHz maximum sine-wave output
- UTG4254X — 250 MHz maximum sine-wave output
All three models share the same 2.5 GSa/s sampling rate, 16-bit DAC, 128 Mpts per-channel arbitrary waveform memory, modulation capabilities, advanced waveform functions, and 10.1-inch touchscreen interface. The primary difference between models is their maximum output-frequency range.
Key Features of the UTG4000X Series:
✅ 100 MHz, 160 MHz, or 250 MHz Sine-Wave Output
Choose the model that matches your required signal-frequency range, from general-purpose embedded testing to higher-frequency communications and advanced R&D applications.
✅ Four Fully Independent Performance Channels
Generate and control four signals simultaneously, with equal channel capability across the entire instrument.
✅ 2.5 GSa/s Sampling Rate with 2× Interpolation
Provide high-fidelity waveform reproduction and improved high-frequency signal performance.
✅ 16-Bit Vertical Resolution
Generate precise waveforms with 65,536 amplitude levels for accurate stimulus and signal emulation.
✅ Up to 128 Mpts Per-Channel Arbitrary Memory
Store and reproduce long, complex waveforms, protocol streams, sensor signals, and custom stimulus patterns. U
✅ 15 Types of Analog and Digital Modulation
Support AM, FM, PM, DSB-AM, ASK, FSK, 3FSK, 4FSK, PSK, BPSK, QPSK, OSK, QAM, PWM, and SUM modulation. U
✅ Advanced Waveform Generation
Includes Multi-Pulse, Multi-Tone, Sequence, Pattern, I/Q, and Expression functions for sophisticated signal creation.
✅ 800 MHz Hardware Frequency Counter
Measure external signals with the integrated high-frequency hardware counter.
High-Fidelity Waveform Generation
The UTG4000X’s 16-bit DAC provides significantly finer amplitude resolution than traditional 12-bit or 14-bit signal generators. Combined with the 2.5 GSa/s sampling architecture and 2× interpolation, the series is designed to reproduce detailed waveforms with low jitter and minimal distortion.
The instruments support standard waveforms including sine, square, ramp, pulse, harmonic, noise, PRBS, DC, and arbitrary waveforms. Frequency resolution can reach 1 µHz across the generator’s output range, giving engineers precise control over signal frequency during characterization and validation.
For applications requiring custom stimulus, the arbitrary waveform engine supports waveform lengths from 8 points through 128 Mpts per channel. This enables users to reproduce extended real-world signals, sensor outputs, communication sequences, and complex test patterns directly from the instrument.
Comprehensive Modulation Capabilities
The UTG4000X series provides a broad collection of analog and digital modulation functions for communications, embedded, and signal-processing applications. Engineers can generate AM, FM, PM, DSB-AM, ASK, FSK, PSK, BPSK, QPSK, OSK, QAM, PWM, and other modulation formats directly from the instrument.
QAM functionality extends from QAM4 through QAM256 constellations, while the digital modulation set supports multiple FSK and PSK formats. This makes the UTG4000X suitable for testing communication-system components, evaluating receivers, and generating controlled modulated carriers.
The generators also support I/Q functionality through SignalStudio-driven baseband generation, enabling engineers to create sophisticated communication signals for system verification.
Advanced Sweep and Burst Functions
In addition to continuous waveform generation, the UTG4000X series supports Linear, Logarithmic, List, and Step sweep modes. These functions allow engineers to automatically vary signal parameters across a defined range, making frequency-response characterization and automated testing more efficient.
Three burst modes—N-cycle, Gate, and Infinite—provide additional flexibility when generating transient or controlled signal sequences. N-cycle burst operation supports between 1 and 1,000,000 cycles, allowing users to precisely define the duration of generated signal bursts.
Advanced Arbitrary Waveform Functions
The UTG4000X goes beyond traditional arbitrary waveform playback with a collection of advanced signal-generation tools.
Multi-Pulse mode supports between two and 30 pulses, with individual pulse edge and width control. Multi-Tone mode allows multiple frequency components to be combined into a composite signal. Sequence mode can combine up to 1,024 waveforms, while Pattern mode supports digital patterns including NRZ, RZ, and Manchester formats.
Expression mode provides another level of flexibility by allowing engineers to create formula-defined waveforms. Together, these functions make the UTG4000X a versatile platform for creating specialized test signals without requiring external waveform-generation software.
Digital Protocol Output
For embedded and digital-system development, the UTG4000X series includes built-in digital-protocol output capabilities for SPI, I²C, and UART. This allows engineers to generate controlled digital communication signals alongside analog waveforms from the same instrument.
This capability is particularly useful for board bring-up, interface testing, firmware validation, and troubleshooting. Engineers can create known-good communication patterns, introduce controlled variations, and observe how a device under test responds.
Large Touchscreen Interface
The UTG4000X series features a 10.1-inch capacitive touchscreen designed for intuitive control and waveform configuration. The touchscreen interface allows users to directly manipulate signal parameters and navigate the generator’s extensive feature set without relying solely on traditional menu-driven controls.
The large display is especially useful when working with four simultaneous channels, as it provides sufficient screen space to monitor and configure multiple outputs while maintaining clear visibility of key parameters.
Flexible Connectivity for Automated Testing
The UTG4000X series is designed to integrate into modern laboratory and automated-test environments. LAN and USB connectivity provide remote-control and data-transfer capabilities, while SCPI-based instrument control allows engineers to incorporate the generator into automated test scripts and measurement systems.
This makes the series well suited for ATE applications where multiple instruments need to be controlled from a central computer. Instrument-manager software can also support synchronized multi-instrument laboratory setups.
Ideal Applications
The UTG4000X series is suitable for a broad range of professional applications. In embedded-system development, four independent channels can provide simultaneous clock, control, sensor, and communication signals for device testing. The integrated SPI, I²C, and UART pattern-generation capabilities further simplify digital-interface validation.
For communications testing, the extensive modulation set, QAM support, I/Q functionality, and high-frequency output options provide the flexibility needed to generate controlled test carriers and baseband signals. The 250 MHz UTG4254X offers the widest output-frequency envelope in the family for applications requiring additional frequency headroom.
In education and laboratory environments, the four-channel architecture and intuitive touchscreen provide students and engineers with a single platform for exploring waveform generation, modulation, digital communications, signal processing, and circuit behavior.
The series is also well suited for automated test equipment, production validation, sensor emulation, power-electronics control testing, and general R&D where accurate multi-channel signal generation is required.
Choosing the Right UTG4000X Model
The three UTG4000X models use the same core platform, so selecting the right instrument primarily depends on the maximum output frequency required for the application.
The UTG4104X provides up to 100 MHz sine-wave output and is a strong choice for general embedded, instrumentation, and teaching-laboratory applications. The UTG4164X extends the sine-wave range to 160 MHz for applications requiring additional frequency headroom. The UTG4254X reaches 250 MHz and is designed for the widest range of high-frequency signal-generation requirements in the series.
All three models provide four channels, 2.5 GSa/s sampling, 16-bit resolution, 128 Mpts per-channel memory, the same modulation set, advanced waveform functions, and the same overall interface architecture.
Availability and Support
The UTG4000X Series Performance-Series Arbitrary Waveform Generators is available through authorized UNI-T distributors. The series includes the UTG4104X, UTG4164X, and UTG4254X, with maximum sine-wave frequencies of 100 MHz, 160 MHz, and 250 MHz, respectively. All models are backed by UNI-T’s 3+2 Year Warranty, providing three years of standard coverage plus two additional years free when the product is registered.
For detailed specifications, pricing information, or to select the right model for your application, visit the UTG4000X product collection or contact your local UNI-T representative.
About UNI-T
UNI-T is a leading manufacturer of precision test and measurement equipment, providing innovative solutions for electronic design, manufacturing, service, and educational applications. With over 20 years of experience in the test and measurement industry, UNI-T continues to develop instruments that help engineers and technicians work more efficiently and effectively. The company maintains research and development centers in Asia, Europe, and North America, ensuring cutting-edge technology and responsive customer support worldwide.
Media Contact:
UNI-T Marketing Department
Email: marketing@uni-trendus.com
Tel: +1-888-668-8648 (North America)
www.uni-trendus.com
