The Keysight / Agilent / HP 54503A is a four-channel digitizing oscilloscope engineered for repetitive signal acquisition and single-shot troubleshooting in electronics design and validation. With 500 MHz repetitive bandwidth and 2 MHz single-shot bandwidth, the instrument delivers 8-bit vertical resolution (10 bits with averaging) across a 1 mV/div to 5 V/div sensitivity range. Maximum sampling reaches 1 GSa/s on a single channel or 20 MSa/s across all channels, with record lengths up to 8001 points in real-time mode and 501 points in repetitive mode.

Technical Specifications

• Bandwidth: 500 MHz (repetitive); 2 MHz (single-shot)
• Channels: 4 total; 2 simultaneous (alternating acquisition on channels 1/4 and 2/3)
• Sample Rate: 1 GSa/s (single channel); 20 MSa/s (all channels)
• Record Length: 8001 points (real-time); 501 points (repetitive)
• Vertical Resolution: 8 bits; 10 bits with averaging
• Sensitivity: 1 mV/div to 5 V/div
• Rise Time: 700 ns
• Time Interval Accuracy: 100 ps (repetitive and single-shot)
• Input Impedance: 50 ohms (selectable for RF applications)
• Power Consumption: 350 VA maximum
• Weight: 20 kg (44 lb)

– Key Features

• Advanced logic triggering on edge, pattern, state, or delayed conditions
• Glitch triggering down to 1.75 ns pulse width
• Automatic pulse parameter measurements and limit testing
• Dual-time-base windowing for detailed signal analysis
• Signal averaging to enhance vertical resolution
• Full HPIB (IEEE 488.2) programmability for remote control

– Typical Applications

Hardware design validation, signal debugging, pulse characterization, and repetitive waveform analysis in electronics and electrical engineering environments.

– Compatibility & Integration

HPIB (IEEE 488.2) interface enables remote programming. Option 001 adds telecommunications mask template testing with automatic pass-fail comparison. Rack mount kit (Opt 908) and additional documentation sets (Opt 910) available.