Siglent SDS812X HD 2CH 100MHz 12bit Oscilloscope
SIGLENT’s new SDS812X HD series high resolution digital storage oscilloscope is based on 2 GSa/s, 12-bit Analog-Digital Converters and front ends with excellent noise floor performance. With a 100MHz bandwidth, and a maximum record length of 50 Mpts, and has 2 analog channels + 16 digital channels mixed signal analysis ability.
SDS812X HD — 100 MHz, 2 channels, 12-bit
The SDS812X HD is the 100 MHz, 2-channel model of Siglent’s SDS800X HD series — the most affordable 12-bit oscilloscope in the range, bringing high-resolution acquisition to the bench, lab and classroom. The 12-bit ADC and a quiet 70 µVrms front end resolve small signals and ripple with far less noise than an 8-bit scope.
It pairs that resolution with 2 GSa/s sampling, up to 100 Mpts of memory and a 120,000 wfm/s capture rate, a 7" capacitive multi-touch display, and built-in Bode plot, power analysis and a 2 Mpts FFT. Standard serial decode (incl. CAN FD, FlexRay & I²S), an optional 16-channel logic probe and a 25 MHz generator make it a complete, budget-friendly bench.
Analysis tools built in
12-bit high resolution
A true 12-bit ADC reveals fine detail and small signals with 16× less quantisation noise than an 8-bit scope, on a front end with a 70 µVrms noise floor.
Bode plot & power analysis
Built-in frequency-response (Bode) plotting with a Vari-level mode for control-loop response, plus optional power-analysis tools.
2 Mpts FFT
A hardware-accelerated 2 Mpts FFT with Normal/Average/Max-hold modes, multiple windows and peak markers turns the scope into a capable spectrum tool.
Advanced math
Four math traces with +, −, ×, ÷, FFT, integrate, differentiate and square-root, plus a formula editor for complex operations.
Who it’s for & best applications
The SDS812X HD steps bandwidth up to 100 MHz in a 2-channel format — for general-purpose work at slightly higher frequencies, with the 12-bit resolution to still see fine detail. The extra bandwidth captures quicker edges and faster clocks cleanly, while the deep FFT extends spectral analysis further. Backed by a 7″ capacitive multi-touch display, 100 Mpts memory and a 120,000 wfm/s capture rate, it suits everyday development, teaching and repair, and stays ready to expand with an optional 16-channel logic probe and a 25 MHz waveform generator.
- Electronics education & university labs
- Makers and home labs
- Service, repair & QA technicians
- Entry-level engineers
- General-purpose 2-channel benches
- Power-supply ripple & rail checks
- Serial debug (I²C, SPI, UART, CAN, LIN)
- Higher-frequency switching & noise
- FFT / spectral checks
- Analog & sensor measurements
- Board bring-up and repair
Specifications
| Analog bandwidth | 100 MHz |
| Analog channels | 2 + EXT |
| Vertical resolution | 12-bit |
| Noise floor | 70 µVrms @ 200 MHz (typ.) |
| Max. sample rate | 2 GSa/s (single channel) · 1 GSa/s (per channel) |
| Max. record length | 100 Mpts (single) · 50 Mpts (per channel) |
| Waveform capture rate | 120,000 wfm/s (normal) · 500,000 wfm/s (sequence) |
| Display | 7" capacitive multi-touch (1024×600), mouse & web control |
| Trigger types | Edge, Slope, Pulse, Window, Runt, Interval, Dropout, Pattern, Video, Serial |
| Serial decode (standard) | I²C, SPI, UART/RS232, CAN, CAN FD, LIN, FlexRay, I²S |
| Math | 4 traces · 2 Mpts hardware FFT · formula editor |
| Analysis tools | Search, Navigate, History, Mask Test, Counter, Bode Plot, Power Analysis |
| MSO (optional) | 16 digital channels via SLA1016 logic probe |
| AWG (optional) | SAG1021I — 25 MHz isolated arbitrary waveform generator |
| Connectivity | USB 2.0 Host · USB 2.0 Device · 10/100M LAN · Aux (Trigger / Pass-Fail) out |
| Standard probe | Passive probe, one per channel (bandwidth-matched) |
From the official SDS800X HD datasheet; subject to change, errors & omissions excepted.
In the box
Everything included as standard with your SDS812X HD.
Optional accessories & licenses
Expand your SDS812X HD with logic analysis, a built-in generator and probes. Serial decode (including CAN FD, FlexRay and I²S) is included as standard.
SLA1016 16-channel logic probe — adds 16 digital channels for mixed-signal debug.
SAG1021I 25 MHz isolated arbitrary/function generator module.
Spare passive probes and active / high-voltage probes.
SDP6150A / SDP6150D and DPB-series differential high-voltage probes.
Cables, cases, calibration kits, deskew fixtures and more.
Software & licenses
A real strength of the SDS800X HD: serial trigger & decode is included as standard — even CAN FD, FlexRay and I²S, which are paid licenses on many other oscilloscopes. The only separate software option is Power Analysis.
| Function | Order number | Status | Action |
|---|---|---|---|
| Serial trigger & decode — I²C, SPI, UART, CAN, LIN | Standard | Included | No license required |
| CAN FD trigger & decode | Standard | Included | No license required |
| FlexRay & I²S trigger & decode | Standard | Included | No license required |
| Power Analysis software | SDS800XHD-PA | Optional | €239.00Buy |
MSO (SLA1016) and the 25 MHz generator (SAG1021I) are hardware options shown above. Power Analysis is a software-only license — see the SDS800XHD-PA page.
Compare the full SDS800X HD range
See the 70, 100 and 200 MHz, 2- and 4-channel models side by side, or ask us for advice.