Keysight Technologies UXR0334A

The Keysight UXR0334A provides 33 GHz of fully sampled real-time analog bandwidth simultaneously on all four channels. This represents the highest bandwidth in the 3.5 mm connector family of UXR-Series oscilloscopes, optimized for best-in-class signal integrity and noise performance. The platform's upgradable architecture allows sequential bandwidth increases to higher models up to 110 GHz through software licensing, ensuring the instrument can adapt to future testing requirements.

The UXR0334A delivers 128 GSa/s per channel maximum sample rate unrestricted across all four channels, providing 7.8125 ps real-time sample resolution. This high sampling rate combined with full bandwidth time-interleaved sampling ensures accurate capture of fast signal transitions and high-frequency components. Each channel operates independently at full sample rate, enabling simultaneous multi-channel measurements without performance degradation or channel interleaving limitations.

The UXR0334A's 10-bit ADC architecture delivers 1,024 quantization levels, providing 4 times the vertical resolution of traditional 8-bit systems with only 256 levels. This high-definition conversion enables more accurate signal digitization and superior signal-to-noise ratio, allowing measurements down to 4 mV/div in hardware and 1 mV/div with magnification. The increased bit depth reveals subtle signal characteristics and anomalies while achieving industry-leading ENOB for oscilloscopes above 13 GHz bandwidth, critical for modern low-voltage high-speed signaling.

The UXR0334A includes 200 Mpts of standard memory per channel with optional upgrades to 1 Gpt or 2 Gpts per channel available via license keys. This deep memory capability enables extended signal capture at full 128 GSa/s sample rates without gaps or reduced fidelity. The large memory depth is essential for capturing long data sequences, analyzing packet-based protocols, and characterizing rare events or intermittent signal anomalies in complex high-speed digital systems.

The UXR0334A features ruggedized male 3.5 mm NMD analog bulkhead connectors with an integrated auto-torque clutch mechanism that ensures reliable 8 in-lb connections. These precision connectors offer dual threading with internal threads compatible with standard female SMA, 3.5 mm, and 2.92 mm cables and adapters, plus external threads for ruggedized connections. The AutoProbe II interface provides robust connectivity for InfiniiMax III and III+ probe families, ensuring maximum signal integrity and measurement flexibility.

The UXR0334A achieves exceptional noise performance through an ultra-quiet analog multi-chip front-end module specifically optimized for DC to 33 GHz bandwidths. The design incorporates low-noise pre-amplifiers synchronized with dual 64 GSa/s SiGe samplers feeding eight 10-bit ADCs through time-interleaved sampling architecture. Faraday cage shielding technology protects signals from external noise, while analog and DSP bandwidth limit filters reduce unwanted noise contributions, enabling accurate capture of low-amplitude signals and precise noise characterization.

The UXR0334A incorporates an advanced signal processing memory controller with over 100 million gates capable of 5 trillion integer operations per second, improving performance of certain features by up to 100 times. Hardware-based acceleration speeds waveform plotting, averaging, equalization including CTLE and FFE, jitter measurements, TIE analysis, and InfiniiSim de-embedding. The 3.0 GHz quad-core processor with 16 GB RAM and frequency response correction filters ensure fast update rates even with deep memory enabled for responsive operation.

The UXR0334A is engineered for demanding applications including advanced datacom system debug, PCIe Gen 4/5 compliance and characterization, USB 3.2/4.0 analysis, next-generation DDR5 memory validation, 802.11ay wireless testing, 5G millimeter-wave development, coherent optical modulation research, and PAM4/NRZ signal integrity analysis. With industry-best ENOB, less than 10 fs RMS inter-channel intrinsic jitter, and 33 GHz bandwidth, the instrument excels at multi-channel high-speed digital and RF measurements where timing accuracy and signal fidelity are paramount.