The Agilent/Keysight 54120A is a digital sampling oscilloscope engineered for high-speed time-domain measurements and waveform characterization. With 20 GHz bandwidth and dual channels, it delivers up to 80 GSa/s sampling rate across 2 Gpts of memory, enabling precise capture and analysis of complex signals in R&D, manufacturing, and troubleshooting environments.
Technical Specifications
• Bandwidth: 20 GHz
• Channels: 2
• Sample Rate: Up to 80 GSa/s
• Memory Depth: Up to 2 Gpts
• Vertical Resolution: 8 bits native; effective resolution extends to approximately 10–12 bits via averaging
• Rise Time: <17.5 ps
• Input Impedance: 50 Ω
• Time Interval Accuracy: 10 ps
• Maximum Input Voltage: ±5 V
• Display: 9-inch color display
• Dimensions: 440 mm × 240 mm × 410 mm
• Weight: 11 kg
– Key Features
• True triggering to 18 GHz with Test Set
• Advanced trigger modes: Edge, Pulse, Pattern, State, and Delay
• Time and voltage histogram capabilities
• Reflection (TDR) and transmission (TDT) normalization
• Automated measurements with digital storage
• Fully programmable architecture
– Typical Applications
The 54120A suits high-speed signal analysis across communication systems, component characterization, signal integrity verification, and transient event capture where sub-20 ps timing precision is required.
– Compatibility & Integration
• Interfaces: USB, LAN, GPIB
• Remote Control: GPIB and RS-232 options available
• Software: Windows compatible; Keysight IO Libraries Suite required for instrument control
• Test Set Requirement: Required for full triggering capability to 18 GHz
• Status: Obsolete; no longer sold but self-help resources and third-party service options available
