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LeCroy oscilloscope offers high sample rate, long capture time

Posted: 31 Mar 2004 ?? ?Print Version ?Bookmark and Share

Keywords:lecroy? wavesurfer? digital oscilloscope? analog persistence technology? waverunner?

To better understand its users' needs, LeCroy Corp. has conducted interviews with more than 50 of its customers. This resulted in the development of its new line of WaveSurfer digital oscilloscopes.

Following the footsteps of the company's popular WaveRunner, WavePro and WaveMaster instruments, the new series features a 10.4-inch 800-by-600 SVGA touch screen panel in a small footprint with 15cm depth. This display panel is 250 percent larger than other oscilloscope in this class and provides exceptional brightness and a wide viewing angle.

According to the company, the device provides more than 100x the capture time at full sample rate compared to other products in the market. It has a standard 250?s capture time at 250kpts/ch, with options to allow up to 1ms.

A long capture time greatly assists in the performance of common tasks such as capturing a mix of fast and slow signals, making timing measurements, making acquisitions that require long post-trigger, and maintaining adequate sample resolution on trigger signals.

Simple connection, communication, documentation

LeCroy said that the Windows XP OS and 10/100BaseT Ethernet port make it easy to connect the oscilloscope to a network using standard Windows tools. Currently, WaveSurfer is the only device in its class that can save waveform data directly from the device, label image files directly, print to any network printer, and save files on network servers.

It includes three USB 2.0 ports, including one on the front panel to allow the use of various storage devices such as Flash memory sticks, Zip and floppy drives.

The series offers a robust set of trigger features, including edge, line, glitch, pulse width, logic pattern and video triggers, while an optional advanced trigger package includes runt, slew rate, interval (of signal or pattern), dropout and qualified triggering.

The WaveSurfer includes LeCroy's propriety Analog Persistence technology that provides a color-graded view of waveform activity. With one touch of the "Analog Persistence" button, this display technique allows the oscilloscope to capture many acquisitions of a signal which are then displayed in persistence mode on the screen.

Tektronix Inc., LeCroy's main competitor, has also recently released a 8GHz bandwidth digital storage oscilloscope that features Pinpoint triggering, four channels of concurrent high resolution waveform capture, and a new differential probing solution using IBM's 0.18?m Silicon Germanium (7HP SiGe) technology.

The WaveSurfer 454, 434 and 424 devices are 500-, 350- and 200MHz (respectively) four-channel oscilloscopes, and the 452, 432 and 422 models are two-channel versions. The company also offers a choice of an optional pedestal mounting fixture or a desktop stand, which conveniently positions the device.

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