33GHz, 100G-sample/sec Scope Claims Industry's Best Accuracy

Tektronix has announced the DPO (digital-phosphor oscilloscope)/DSA (digital-signal analyzer)70000D Series, which comprises four models. With two channels active, real-time acquisition rates range to 100G samples/sec on each channel, and, depending on the model, analog bandwidth reaches either 25GHz or 33GHz. For repetitive—though not necessarily periodic—signals, you can use the RIS (random-interleaved-sampling) feature to obtain 25GHz or 33GHz bandwidth on four channels with effective acquisition rates on each channel as high as 10,000G samples/sec. With real-time-sampling, the bandwidth on each of the four channels is 20GHz, although the manufacturer believes that it will upgrade this specification to 22.5GHz once the evaluation of production quantities is complete.

According to Tektronix, these instruments provide the highest available measurement accuracy for today’s fastest multichannel electrical signals. Analysis of optical modulators and characterization of SERDES (serializer/deserializer) devices require accurate measurements at bit rates beyond 20Gbps. Such measurements require test instruments that deliver low noise and high sensitivity. Using an IBM SiGe (silicon-germanium)-fabrication process, Tektronix engineers have produced ICs that integrate high-speed bipolar transistors and standard CMOS on one die, enabling the new instruments to deliver low noise and the fastest multichannel rise time of any real-time scopes, according to the company.

Tektronix