LeCroy LC334AL Digital Scope, 500MHz, 4 Channel

The LeCroy LC334AL is a 4-channel digital oscilloscope delivering 500 MHz bandwidth and 2 GS/s maximum sample rate for high-speed signal acquisition. With 8 million points of acquisition memory and a 9-inch color CRT display, it captures complex waveforms with extended time resolution across multiple domains. The instrument combines a 96 MHz PowerPC processor with SMARTMemory management to optimize acquisition, processing, and display performance.

Input options include 10 MΩ (±15 pF) and 50 Ω ±1% impedance selections, with vertical sensitivity from 2 mV/div to 5 V/div. Four independent channels support simultaneous measurements across diverse signal types and amplitudes.

Technical Specifications

• Bandwidth: DC to 500 MHz


• Channels: 4


• Maximum Sample Rate: 2 GS/s single-shot; 500 MS/s per channel


• Acquisition Memory: 8 million points maximum; 2 M words per channel maximum


• Sample Rate Window: 4 ms at 2 GS/s


• Display: 9-inch color CRT, 640 × 480 pixels, 170 mm × 125 mm display area


• Vertical Sensitivity: 2 mV/div to 5 V/div (10 MΩ and 50 Ω inputs)


• Input Impedance: 10 MΩ (approx. 15 pF) or 50 Ω ±1%


• Trigger Sensitivity: 1 div p-p (DC to 500 MHz)


• Processor: 96 MHz PowerPC; 8 to 64 MB system RAM


• Power: 90–132 V AC or 180–250 V AC, 45–66 Hz, 400 W


• Dimensions: 24 × 18 × 16 in; 20 kg net weight

Key Features

• Sequence acquisition mode stores multiple timestamped events in segmented memory


• Roll Mode timebase spans 500 ms/div to 1,000 s/div for extended signal capture


• Random Interleaved Sampling (RIS) optimizes resolution on repetitive signals


• Analog and color-graded persistence display modes; full-screen grid option


• Autosetup function configures timebase, trigger, and sensitivity in ~2 seconds (≥50 Hz, >0.1% duty cycle)


• External clock input accepts ≤100 MHz (ECL, TTL, zero crossing); optional 50–500 MHz rear-panel fixed-frequency input


• SMARTMemory dynamically allocates processor power, acquisition memory, and processing RAM


• Battery backup maintains front-panel settings for two years

Typical Applications

• Electronics testing and circuit design validation


• Signal integrity analysis on high-speed digital and analog circuits


• Multi-channel waveform capture and comparison

Compatibility & Integration

• One PP005 probe supplied per channel (DC to 500 MHz typical at probe tip)