Agilent/Keysight 54845B

The Agilent/Keysight 54845B is a 1.5 GHz Infiniium oscilloscope delivering 8 GSa/s sample rates across four analog input channels. Built for signal acquisition on complex electronic systems, it combines deep memory capability with advanced triggering and measurement functions to maintain waveform fidelity across extended capture records.

Technical Specifications

• Bandwidth: 1.5 GHz


• Maximum sample rate: 8 GSa/s


• Acquisition memory: 32 kpts per channel standard; 64 kpts maximum per channel


• Deep memory support: Up to 128 Mpts via MegaZoom, sustaining fast update rates even during extended acquisitions Analog Inputs


• Four input channels with DC, AC (7 Hz), Low Frequency Reject (50 kHz), and High Frequency Reject (50 kHz) coupling options Triggering Capabilities


• Glitch/Pulse Width: Captures pulses as narrow as 500 ps with accuracy of ±(20% setting + 500 ps) for 1.5–20 ns and ±(3% setting + 2 ns) for 20 ns–160 ms


• Transition Select: Rise/Fall time triggering; edge capture to 800 ps


• Video Triggering: 525/60 Hz (NTSC), 625/50 Hz (PAL), and 875/60 Hz support with Field 1/Field 2 selection


• Advanced Violation Triggering Waveform Analysis


• FFT magnitude and phase (DC to 2 GHz interleaved, DC to 1 GHz single channel, DC to 4 GHz dual interleaved)


• Math functions: Add, Average, Differentiate, Divide, Integrate, Invert, Magnify, Min, Max, Multiply, Subtract, Versus, Measurement Trend


• Four simultaneous measurements with statistical display


• AutoMask testing and Cycle-to-Cycle Jitter measurement Display & I/O


• 8.4-inch diagonal color active matrix LCD


• Annotation: Up to 12 labels (100 characters each)


• Interfaces: 10/100 Mbps LAN, RS-232, Centronics, two USB ports


• Power: 100–240 VAC ±10%, 47–440 Hz; 306 W maximum dissipation

Key Features

• MegaZoom deep memory maintains acquisition depth without sacrificing update rate responsiveness


• Sub-nanosecond glitch and transition triggering for capturing fast transient events


• Integrated FFT for frequency-domain analysis across multiple bandwidth ranges


• AutoMask streamlines mask-based compliance testing workflows

Typical Applications High-speed digital and RF signal characterization, protocol analysis, jitter measurement, transient event capture, and mask-based validation testing.

Compatibility & Integration LAN, RS-232, and USB connectivity support remote operation and data logging. Standard Centronics parallel port enables legacy instrument integration.