Real-time, 20-GHz-bandwidth DSO takes 50G samples/sec and captures four 200M-sample records at once

摘要

Even though it makes Tektronix's DSA72004 (digital serial analyzer), with its 22-psec, 10 to 90% rise time, sound like the ultimate real-time oscilloscope, the headline doesn't tell the whole story. Besides the 20-GHz DSA unit, Tek is rolling out two similar series of 4-, 8-, 12.5-, 16-, and 20-GHz-bandwidth scopes. The lower priced DPO70000 series offers the same bandwidths and channel counts as the DSA series, but the base units provide a less comprehensive-albeit, upgradable-suite of signal-integrity-software tools. All members of both series can acquire more than 300,000rnwaveforms/sec in the FastAcq segmented-memory mode. All use DSP filters to let you optimize SNR without altering the sampling rate, and all offer an rms-jitter noise floor of less than 400 fsec.