The LeCroy LC554DL is a 4-channel digital oscilloscope delivering 500 MHz bandwidth and sampling rates up to 4 GS/s across dual channels, with Random Interleaved Sampling extending to 25 GS/s for repetitive signals. Built for signal acquisition and analysis, it combines fast transient capture with advanced triggering and math processing to support complex waveform characterization in design validation and troubleshooting workflows.
Technical Specifications
Core Performance
• Bandwidth: DC to 500 MHz (−3 dB) at 50 Ω
• Channels: 4
• Sample Rate: 4 GS/s (2 channels), 2 GS/s (4 channels), 25 GS/s RIS (repetitive)
• Maximum Record Length: 1 Mpt per channel (4-channel mode), 2 Mpt (1–2 channel mode)
• Vertical Resolution: 8 bits
• Timebase Accuracy: 10 ppm
• Interpolator Resolution: 5 ps
Input Characteristics
• Sensitivity: 2 mV/div to 1 V/div (50 Ω), 2 mV/div to 2 V/div (1 MΩ)
• Input Impedance: 10 MΩ // 11 pF (PP005 probe), 50 Ω ±1.25%
• Input Coupling: AC (>10 Hz typical), DC, GND
• DC Accuracy: ±(2% full scale + 1% offset value) typical
• Offset Range: ±20 V (AP020/AP022 active probes); ±400 mV (2.00–4.99 mV/div)
• Maximum Input: 100 V (1 MΩ DC + peak AC ≤10 kHz), ±5 VDC / 5 V rms (50 Ω)
• Bandwidth Limiter: 25 MHz, 200 MHz typical
• Probe Attenuation: 12 selectable factors
Triggering
• SMART Triggers: Edge, Pulse Width, TV, Runt, Timeout, Window, Logic, Pattern, Setup/Hold, Rise/Fall Time, Glitch, Dropout, Exclusion
• Logic Pattern: 5-input combination (4 channels + EXT) with High/Low/Don’t Care states
• TV-Video: NTSC, PAL, SECAM, nonstandard
• Trigger Sensitivity: 1 div or 1 mV
• Pre-trigger Recording: 0–100% (1% increments)
• Post-trigger Delay: 0–10,000 divisions (0.1 div steps)
• Hold-off: Time (2 ns–20 s) or Events (1–99,999,999)
Display & Processing
• Display: 10.4-inch TFT-LCD color, 640 × 480 pixels (VGA)
• Processor: 96 MHz PowerPC 603e
• System RAM: 8–64 Mbytes
• Video Memory: 1 Mbyte
Analysis
• Math Functions: Add, Subtract, Multiply, Divide, FFT, Square Root, Exponentiate, Logarithm, Absolute Value, Derivative, Integral, Limit Testing
• Advanced Math Package WP01: Standard
• Spectrum Analysis Package WP02: Standard
– Key Features
• Four independent input channels with configurable impedance (50 Ω or 1 MΩ)
• Flexible sampling modes optimize resolution or capture duration per measurement
• Comprehensive trigger library captures rare or transient events
• Integrated FFT and math operations eliminate post-capture processing
• Selectable bandwidth limiting reduces noise on all or individual channels
– Typical Applications
• Digital and analog circuit characterization
• Power supply and signal integrity analysis
• Protocol validation and timing measurements
• Frequency-domain analysis via spectral decomposition
– Compatibility & Integration
• Interfaces: USB, LAN, RS-232-C, Centronics, VGA; GPIB optional
• Power: 100–240 VAC, 50/60 Hz, 400 W
• Probe Compatibility: PP005 (10 MΩ // 11 pF), AP020/AP022 active probes
