The LeCroy LT322 is a 500 MHz digital storage oscilloscope built for signal analysis and fault isolation in demanding lab and field environments. This 2-channel instrument delivers 200 MS/s single-shot sampling per channel with 100 kpts acquisition memory, or up to 10 GS/s repetitive sampling for complex waveform capture. The ProBus intelligent probe interface accommodates multiple probe types, while the 8.4-inch TFT LCD color display and QuickZoom magnification enable detailed signal inspection. Selectable bandwidth limiters (25 MHz or 200 MHz per channel) reduce noise when full bandwidth is unnecessary. The trigger system supports Normal, Auto, Single, and Stop modes with configurable coupling (DC, AC, HF, HFREJ, LFREJ) and multiple source selection. Advanced features include up to four simultaneous zoom traces, horizontal magnification to 50,000x, vertical zoom expansion to 5x (50x with averaging), and sequence acquisition up to 400 segments.
Technical Specifications
-# Acquisition
• Bandwidth: 500 MHz (−3 dB) at 50 Ω and probe tip (PP006)
• Sampling Rate: 200 MS/s per channel (single-shot); up to 10 GS/s (repetitive RIS)
• Channels: 2
• Record Length: 100 kpts/channel (optional up to 2 Mpts with ML option)
• Vertical Resolution: 8 bits (11 bits enhanced with averaging)
• Input Impedance: 50 Ω ±1.0% or 1 MΩ // 12 pF (PP006 probe)
• Maximum Input Voltage: 5 Vrms (50 Ω); 400 Vmax peak AC + DC (1 MΩ)
• Bandwidth Limiters: 25 MHz or 200 MHz per channel
-# Vertical System
• Sensitivity: 2 mV to 10 V/div, fully variable
• DC Gain Accuracy: ±(1.5% + 0.5% full scale)
• Offset Range: ±1 V (2–50 mV/div), ±10 V (100–500 mV/div), ±100 V (1–10 V/div)
• Vertical Zoom: 5x standard; 50x with averaging
-# Timebase & Clock
• Clock Accuracy: ≤10 ppm
• Interpolator Resolution: 5 ps
• Horizontal Zoom: Up to 50,000x magnification
• External Clock Input: ≤200 MHz
-# Trigger System
• Modes: Normal, Auto, Single, Stop
• Coupling: DC, AC, HF, HFREJ, LFREJ
• Sources: Input channels, external, Ext/10, line
– Key Features
• ProBus intelligent probe system
• QuickZoom button for rapid magnification
• Wavepilot toolbar with FFT and histogram functions
• Sequence acquisition (2–400 segments)
• Pre-trigger recording (0–100% configurable)
• Multi-trace display with simultaneous zoom capability
– Typical Applications
Power supply troubleshooting, signal integrity analysis, digital and analog circuit validation, transient capture, frequency domain analysis via FFT.
– Compatibility & Integration
External clock input accommodates ≤200 MHz reference sources. ProBus interface ensures compatibility with LeCroy’s probe ecosystem.
