Electronics Weekly Electronics Design & Components Tech News
SDS7404A, as it will be known, has four analogue channels and 16 digital channels, and a noise floor is as low as 220μVrms at 4GHz bandwidth.
At 20Gsample/s, ENOB (effective number of bits) is typically 7.3bit (50Ω, 50mV/div, -1dBFS/47.999MHz input).
20Gsample/s is only available if only two of the four channels are in use, otherwise it is 10Gsample/s on all four.
Full bandwidth is with coaxial probes and the inputs set to 50Ω. The scope comes with four general purpose probes that offer 500MHz per channel.
For more bandwidth, the company has created an optional 5GHz active differential probe, SAP5000D (left), with 80ps rise time, 400fF differential input capacitance and a 10:1 attenuation ratio.
It needs no external power supply, and is automatically recognised by the oscilloscope.
The scope can capture 1Mwaveform/s and acquisition depth is 500Mpoints per channel, upgradeable to 1Gpt/ch (50ms continuous at 20Gsample/s).
Inside, Siglent has moved to an x86 processor which “greatly improves the response speed, measurement, operation and analysis speed of the system, and created more opportunities for future expansion of analysis functions”, according to the company.
The 15.6inch multi-touch screen has 256 level intensity display grading, plus a colour temperature mode. As well as touch and manual controls, a mouse can be plugged in, and the instrument can be controlled remotely over its LAN port.
“The trigger system supports multiple modes including serial bus triggering,” said Siglent. “Tools such as history waveform recording, search, navigate, signal scan, mask test, Bode plot, power analysis, eye analysis, jitter analysis and compliance test allow for extended waveform records to be captured, stored and analyzed,” said Siglent.
Embedded automatic compliance tests include USB 2.0, 100base-TX, 1000base-T, 100base-T1 and 1000base-T1.
An optional built-in 50MHz arbitrary waveform generator can output six basic waveforms, plus multiple arbitrary waveforms, up to ±3V amplitude, and an OCXO (ovened timebase oscillator) option offers ±100ppb initial accuracy (25°C), ±1ppb drift over 0-50°C and ±50ppb over the first year.
SDS7304A is a 3GHz bandwidth version of the scope with slightly improved noise floor: 180μV and ENOB = 7.5bit.
Find the SDS 7000A series product page here and the data sheet here
