The Agilent/Keysight 54845B is a 1.5 GHz Infiniium oscilloscope delivering 8 GSa/s sample rates across four analog input channels. Built for high-performance 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 & Sampling
• 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.
