Siglent SDS2354X HD 12-bit 350MHz Oscilloscope
The siglent SDS2354X HD is a 350MHz bandwidth high resolution digital storage oscilloscope that is based on 2 GSa/s sample rate and 12-bit Analog-Digital Convertor front ends w excellent noise floor performance.
SDS2354X HD — 350 MHz, 4 channels, 12-bit
The SDS2354X HD is the 350 MHz model of Siglent’s mid-range SDS2000X HD series — a 4-channel, 12-bit oscilloscope that brings high-resolution acquisition and a full analysis toolset to a real-world bench budget. Its 12-bit ADC and low-noise front end resolve small signals, ripple and subtle distortion that an 8-bit scope buries in quantisation noise.
Performance backs up the resolution: 2 GSa/s sampling, up to 200 Mpts of memory and a 100,000 wfm/s capture rate, on a 10.1" capacitive multi-touch display. Built-in Bode plot, power analysis and 2 Mpts FFT, plus an optional 16-channel MSO and built-in 25 MHz generator, make it a complete bench — and its bandwidth is license-upgradable up to 500 MHz, so the instrument grows with your work.
Analysis tools built in
Far more than a scope — loop measurement and power analysis run directly on the instrument.
Bode Plot II — loop response on the scope
Connect a Siglent SDG generator (or the SAG1021 module) over USB or LAN and the scope takes over: it sweeps the stimulus through your injection transformer, measures both sides of the injection resistor, and plots loop gain and phase against frequency — with phase margin and gain margin read out automatically. The Vari-Level profile lowers the stimulus amplitude around the crossover region so a sensitive loop is never overdriven, and the result exports as CSV for the design report. The same engine characterises filters and amplifiers: magnitude and phase response in one automated pass, no frequency-response analyzer required.
Power analysis — a power-electronics workbench
The SDS2000HD-PA licence turns captures into power numbers: power quality and line-current harmonics, inrush current, switching loss with turn-on/turn-off energies, dv/dt and di/dt slew rates, modulation analysis, output ripple and safe-operating-area testing against your device limits. Paired with a differential voltage probe and a current probe (deskewed with the DF2001A fixture), the 12-bit resolution pays off exactly where power measurement hurts most — resolving millivolt ripple and switching detail on top of large swings, so efficiency and loss figures are built on honest waveforms.
12-bit high resolution
A true 12-bit ADC reveals fine detail, small signals and low-level ripple with far less quantisation noise than an 8-bit scope.
Built-in waveform generator
An optional built-in 25 MHz arbitrary/function generator adds stimulus without an extra box on the bench.
Key features
- 12-bit ADC — 16x the vertical resolution of an 8-bit scope, on a 70 uVrms low-noise front end with 0.5% DC gain accuracy
- 350 MHz bandwidth on 4 analog channels + EXT — licence-upgradable up to 500 MHz as your designs get faster
- 2 GSa/s sampling with up to 200 Mpts memory — long captures at full sample rate and resolution
- 100,000 wfm/s capture rate (500,000 in sequence mode) · History & Zone trigger to isolate rare events
- Serial trigger & decode standard: I2C, SPI, UART, CAN, LIN — options incl. CAN FD/XL, FlexRay, I2S, MIL-STD-1553B, SENT
- Built-in Bode Plot II (loop response) and power-analysis option — a power-electronics workbench on the scope
- 10.1" multi-touch display · full web control over LAN · mouse & keyboard support · SCPI automation
- MSO-ready with the SPL2016 16-channel logic probe · optional built-in 25 MHz arbitrary generator
Application examples
Signal integrity at the edge
350 MHz (upgradable to 500 MHz) with 12-bit resolution resolves overshoot, ringing and crosstalk amplitudes precisely — the details that decide whether a termination change actually helped.
Wide-bandgap power electronics
GaN and SiC switching puts fast edges on top of large voltage swings: 12 bits of dynamic range capture both, the 70 uVrms front end keeps low-level detail clean, and the power-analysis option turns captures into loss numbers.
EMI hunting and spectral work
The 2 Mpts hardware FFT with 200 Mpts of source memory localises noise sources and harmonics with fine frequency resolution — a first-pass EMC tool before the test lab.
Validation and pre-compliance
Mask testing, Zone trigger, sequence capture at 500,000 wfm/s and pass/fail limits automate the boring part of validation, with SCPI and web control dropping the scope into any rack.
Automated characterisation
Scripted measurements over SCPI: more than 60 parameters with statistics, histogram and track, deep-memory FFT sweeps and screenshots pulled over LAN — when validation runs overnight, the scope works as a rack instrument and reports in the morning.
Specifications
| Analog bandwidth | 350 MHz (upgradable to 500 MHz) |
| Analog channels | 4 + EXT |
| Vertical resolution | 12-bit |
| Max. sample rate | 2 GSa/s (interleaved) · 1 GSa/s per channel |
| Max. record length | 200 Mpts (interleaved) · 100 Mpts per channel |
| Waveform capture rate | 100,000 wfm/s (normal) · 500,000 wfm/s (sequence) |
| Display | 10.1" capacitive multi-touch (1024×600) |
| Trigger types | Edge, Slope, Pulse, Window, Runt, Interval, Dropout, Pattern, Video, Qualified, Nth edge, Setup/Hold, Delay, Serial |
| Serial decode (standard) | I²C, SPI, UART, CAN, LIN |
| Serial decode (optional) | CAN FD/XL, FlexRay, I²S, MIL-STD-1553B, SENT, Manchester, ARINC429, SpaceWire |
| Measurement | 60+ parameters · statistics, histogram, trend & track |
| Math | 4 traces · 2 Mpts FFT · formula editor |
| Analysis tools | Search, Navigate, History, Mask Test, DVM, Counter, Waveform Histogram, Bode Plot, Power Analysis |
| MSO (optional) | 16 digital channels (SPL2016) · up to 500 MSa/s · 50 Mpts |
| Waveform generator (optional) | Built-in 25 MHz · 125 MSa/s · 16 kpts (SDS2000HD-FG) |
| Connectivity | USB 2.0 Host ×3 · USB 2.0 Device · 10/100M LAN · Ext trigger · web control |
| Standard probes | One 500 MHz passive probe per channel |
From the official SDS2000X HD datasheet; subject to change, errors & omissions excepted.
In the box
Everything included as standard with your SDS2354X HD.
Optional accessories & license keys
Expand your SDS2354X HD with logic-analysis hardware, probes and software activations.
SPL2016 16-channel logic probe with MSO activation — adds 16 digital channels at up to 500 MSa/s.
Spare 500 MHz passive probes and active / high-speed probes for every channel.
HPB4010 high-voltage passive, SDP6150A / SDP6150D and DPB-series differential probes.
Cables, cases, calibration kits and more for your instrument.
License keys & bandwidth upgrades
Software activations for the SDS2354X HD — click Buy to open the licence in the shop. See all SDS2000X HD licenses & options.
| License / upgrade | Order number | Price | Shop |
|---|---|---|---|
| Bandwidth upgrade — 350 MHz → 500 MHz | SDS2000HD-BW3T5 | €1,400.00 | Buy |
| Built-in 25 MHz function generator | SDS2000HD-FG | €228.00 | Buy |
| MSO 16-channel function license | SDS2000HD-16LA | €238.00 | Buy |
| Power analysis | SDS2000HD-PA | €338.00 | Buy |
| CAN FD trigger & decode | SDS2000HD-CANFD | €258.00 | Buy |
| FlexRay trigger & decode | SDS2000HD-FlexRay | €258.00 | Buy |
| I²S trigger & decode | SDS2000HD-I2S | €258.00 | Buy |
| MIL-STD-1553B decode | SDS2000HD-1553B | €258.00 | Buy |
| SENT decode | SDS2000HD-SENT | €258.00 | Buy |
| Manchester decode | SDS2000HD-Manch | €258.00 | Buy |
Prices subject to change. Bandwidth upgrades shown are those available from this model’s 350 MHz base.
Compare the full SDS2000X HD range
See the 100 MHz, 200 MHz and 350 MHz models side by side, or ask us to configure the right options.