LeCroy 9310A Dual 400MHz Oscilloscope, 100MS/s

The LeCroy 9310A is a dual-channel digital oscilloscope delivering 400 MHz bandwidth and 100 MS/s real-time sampling on each channel simultaneously. Built for signal analysis across research, design validation, and system integration, this instrument combines high-resolution acquisition with advanced triggering and waveform processing. Its configurable memory architecture and precision timebase enable both single-shot capture and repetitive signal analysis with equivalent-time sampling reaching 10 GS/s.

Technical Specifications

• Bandwidth: 400 MHz (-3 dB) @ 50 Ω DC; 350 MHz below 200 mV/div; 300 MHz @ 2 mV/div; DC to 250 MHz @ 1 MΩ DC


• Channels: 2 with independent 8-bit digitizers (11-bit optional with ERES)


• Real-time Sample Rate: 100 MS/s per channel simultaneously


• Equivalent-time Sampling: Up to 10 GS/s for repetitive signals


• Memory: 50 kPts, 200 kPts, or 1 Mpts per channel; segmentable for minimal dead time


• Vertical Range: 2 mV/div to 5 V/div, continuously variable


• Vertical Offset: ±120 mV (2–9.9 mV/div), ±1.2 V (10–199 mV/div), ±24 V (0.2–5.0 V/div)


• DC Accuracy: ≤±2% of full scale @ 0 V offset


• Bandwidth Limiter: 30 MHz


• Input Coupling: AC, DC, GND


• Max Input Voltage: 250 V DC+peak AC @ 10 kHz (1 MΩ); ±5 V DC / 5 V RMS (50 Ω) Time Base


• Range: 1 ns/div to 1000 s/div


• Clock Accuracy: ≤±0.002%


• Interpolator: 10 ps resolution


• Roll Mode: 500 ms to 1000 s/div; 10 s to 1000 s/div for > 50 kPts


• External Clock: ≤100 MHz (ECL, TTL, zero-crossing levels)


• Zoom Traces: Up to 4 concurrent with main timebase Trigger System


• Modes: Normal, Auto, Single, Stop


• Sources: CH1, CH2, Line, Ext, Ext/10


• Slope: Positive, Negative, Window (BiSlope)


• SMART Triggers: Glitch, Window, Qualified, Interval, Dropout, TV


• Pre-trigger: 0–100% adjustable in 1% increments


• Post-trigger Delay: 0–10,000 divisions in 0.1 div steps


• Holdoff: 10 ns to 20 s (time) or 0–99,999,999 events


• Internal Sensitivity: ±5 div

Key Features

• Dual independent digitizers enable simultaneous two-channel acquisition without cross-channel interference


• Selectable memory depths address trade-offs between acquisition duration and system bandwidth


• Segmented memory reduces dead time in burst-capture applications


• Advanced trigger coupling (AC, DC, HF, LFREJ, HFREJ) isolates desired event characteristics


• CRT display renders complex waveforms with high-resolution visualization

Typical Applications

• Signal integrity verification in high-speed digital design


• Analog circuit characterization and fault diagnosis


• Transient event capture and post-analysis


• Educational instrumentation for electronics laboratories

Compatibility & Integration External clock input accepts ECL and TTL sources to ≤100 MHz. Channel inputs support 1 MΩ and 50 Ω termination. Trigger sources include both internal channels and external inputs with programmable coupling and level adjustment.