The LeCroy 9400A Digital Oscilloscope is a powerful general-purpose tool for waveform recording and analysis. Combining ease of use with a comprehensive range of measurement and processing capabilities, it enables extremely precise measurements. The LeCroy 9400A provides 175 MHz bandwidth, 100 megasamples/sec 8-bit ADCs, ± 2 % DC accuracy (± 1 % optional), 32K memory per channel, and up to 192K of waveform storage memory. It is fully programmable over RS-232-C or GPIB interfaces. Plotter drivers enable color archiving via a wide range of digital plotters. High bandwidth and precision - Two independent channels, each with 175 MHz bandwidth and a high-performance 8-bit ADC, handle input signals with better than +2% DC accuracy (±1% optional). The 9400A features sampling rates of 100 megasamples/ sec for transient events. Long memories and a versatile cursor system (including voltage, time and cross-hair cursors), give time measurements with an accuracy of ±0.02% ofthe time-base setting, and resolution of ±0.002% full scale. High-resolution display-The 9400A’s large display screen produces bright, stable, razor-sharp pictures of your signal under any repetition rate conditions. Very accurate signal comparisons are possible as up to four waveforms (live, expanded or processed) can be displayed simultaneously on the high-resolution screen (1024 x 1024 pixels). Long memories - The long 32K acquisition memories of the 9400A Digital Oscilloscope capture waveforms with high fidelity. At similar time-base settings, the 9400A’s long memories allow sampling rates up to 25 times faster than that of instruments which have only 1K of acquisition memory (see graph below). Faster sampling rates ensure higher single-shot bandwidth as well as significantly reducing problems caused by undersampling and aliasing. The 9400A’s long memories allow displayed waveforms to be expanded up to 100 times to show the finest signal details. Transient recording - With a sampling rate of 100 megasamples/sec, the 9400A is an extremely powerful transient recorder. Long 32K data point acquisition memories, combined with a continuously adjustable trigger (from 100% pre-trigger to 10,000 divisions post-trigger at any time-base setting), ensure that rare events cannot be missed. Both channels are sampled simultaneously so that exact time correlation is maintained between channels. Full programmability - All the 9400A’s front-panel controls are fully programmable via the two RS-232-C interface ports or the GPIB port. A single push-button initiates a screen dump for accurate color hard copies of the display via a wide range of digital plotters. The GPIB comes complete with LeCroy “MASP” software offering computer control and mass storage on any PC compatible with the IBM® standard. Signal processing - The waveform processing options extend the applications of the 9400A to high bandwidth signal characterization, as well as mathematical and spectral analysis. The routines include averaging (summed and continuous), smoothing, integration, differentiation, square, square-root, full arithmetic, FFT spectral analysis, and Extrema monitoring. Mass storage and remote control - A sophisticated mass storage and remote control package is available to assist users involved in automated and computer-aided testing. Convenient portability for field applications is also provided by a lap-top computer.