Siglent Launches New Flagship Digital Storage Oscilloscope

November 27, 2023 by Duane Benson

The new SDS7000A oscilloscope line from Siglent brings two model, the SDS7404A and SDS7304A, as its top offerings, with 4 GHz and 3 GHz bandwidths.

Siglent has introduced the new SDS7000A oscilloscope with two model variations. The two models, the SDS7404A and SDS7304A, have four analog channels and 16 digital channels at 4 GHz and 3 GHz bandwidths, respectively. Both deliver a sampling rate of up to 20 Gsamples/s, provide 12-bit hardware vertical resolution, and offer a waveform capture rate as high as one million wfm/s. As a storage scope, the series has a standard depth of 500 Mpts/channel with an optional 1 Gpts/channel. The scopes have a noise floor of 220 μVRMS at 4 GHz bandwidth.


Siglent SDS700A series digital storage scope

Siglent SDS700A series digital storage scope.

The SDS7000A is based on an industry-standard architecture (ISA) x86 processor, with a 15.6” HD capacitive-touch screen to deliver improvements in the response speed and overall operation of the scope. 


High-Performance Computers With a Scope App

Like our phones, the modern oscilloscope is a high-performance digital computer wrapped up in an application-specific user interface. The new Siglent line is no exception. The device sports a familiar I/O panel with HDMI, DisplayPort, and DVI for displaying on an external monitor. It also includes two Ethernet, four USB 3.0, three 3.5 mm audio interfaces, and a DB9 RS232 connector. On the back, it has five BNC connectors, AC power, and a USB-B port.


100Base-TX compliance testing display.

Back of the oscilloscope. 

x86 for Performance Boost Over Prior Models

The prior flagship line, the SDS6000A series, used an AMD Kintex UltraScale+ FPGA to improve performance from earlier models. With the SDS7000A, Siglent has taken a different approach to performance improvement and put an x86 processor inside. The company doesn’t publish the specifics, but based on the standard-looking I/O plate and PCIe accessory options, it appears to be based on an industry-standard PCIe motherboard. Doing so would free up engineering resources for the custom hardware subsections, allowing for more versatility in internal expansion options and adding flexibility to display output. In fact, with an external HDMI or DisplayPort monitor, you can display the scope’s output at 4K resolution.

Along with the increase in bandwidth over the SDS6000A, the SDS7000A improves on the prior model’s 8-bit vertical hardware sampling with 12-bit vertical resolution. The 12-bit signals are samples at 20 Gsamples/s with up to 1 Giga points per capture. It can capture up to 50 ms at a maximum sample rate with no gaps.


Dedicated Test Scenario Add-Ons

Siglent offers a number of accessories to the new oscilloscope that make specific testing jobs easier. Users can purchase add-on software for 1000Base-T, 100-Base-TX, 100Base-T1, and USB2 compliance testing. These software packs automate much of the compliance testing with templates and visual indicators, allowing for a more production-like compliance test environment.


100Base-TX compliance testing display.

100Base-TX compliance testing display.

To supplement the oscilloscope, Siiglent also offers software modules to expand memory depth for various analyses, protocol signal decoding functions, and specific signal generators.


Probe Included for Out-of-the-Box Operation

It is not uncommon for oscilloscopes to be sold without a probe or with a low-end, inexpensive probe. The SDS700A comes with Siglent’s highest-performing differential probe. The SAP5000D operates at up to 5 GHz bandwidth and is compatible with prior scopes as well. It has high input resistance (20 KΩ) and low input capacitance (400 fF) and delivers offset and DC gain accuracy with less than 3% error.



All images used courtesy of Siglent

1 Comment
  • T
    tomderyck December 01, 2023

    The scope is delivered with SP3150A 500 MHz Oscilloscope Probe, not the 5 GHz version. This is a separate accessory.

    Like. Reply