Digilent Analog Discovery 3 vs Rigol DS1054Z
Head-to-head spec comparison to help you pick the right scope for your bench.
Digilent
$379
Rigol
$349
Spec-by-Spec Comparison
| Spec | Digilent Analog Discovery 3 | Rigol DS1054Z |
|---|---|---|
| Bandwidth | 50 MHz | 50 MHz |
| Sample Rate | 0.125 GSa/s | 1 GSa/s |
| Channels | 2 | 4 |
| Memory Depth | 32 Kpts | 12 Mpts |
| Display Size | N/A | 7" |
| Weight | 0.15 kg | 3.2 kg |
| Price | $379 | $349 |
| Rating | 7.5/10 | 8.5/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | No |
| WiFi | No | No |
| Battery | No | No |
| Buy on Amazon · $379 | Buy on Amazon · $349 |
Pros & Cons
Digilent Analog Discovery 3
Pros
- 14 instruments in one: scope, logic analyzer, protocol analyzer, function gen, power supplies, network analyzer, and more
- WaveForms software is excellent, free, and regularly updated
- 16-channel logic analyzer is invaluable for digital protocol debugging
- Fits in a pocket — genuinely portable full lab capability
- Great for students and educators who need multiple instrument types
Cons
- Only 125MSa/s — significantly lower than benchtop scopes
- Requires a PC to operate — no standalone use in the field
- 2 analog channels with limited bandwidth compared to benchtop alternatives
- 32Kpt analog memory depth is very shallow for longer captures
- Not a replacement for a dedicated scope when analog performance matters
Rigol DS1054Z
Pros
- 4 channels at a mid-range price — still rare and genuinely valuable
- 12Mpt memory depth is excellent for long capture sessions
- Massive community: tutorials, hacks, and forum answers everywhere you look
- Well-documented bandwidth hack unlocks 100MHz — free upgrade
- Trigger types rival scopes twice the price
- Protocol decoding (SPI, I2C, UART) included at no extra cost
Cons
- 50MHz stock bandwidth is limiting for faster SPI clocks and RF work
- Interface feels dated compared to the newer Rigol DHO series
- No touchscreen — menu navigation requires physical button presses
- Fan is audible in quiet environments
- The DHO924S has overtaken it on almost every spec at a similar price
Our Verdicts
Digilent Analog Discovery 3
The Digilent Analog Discovery 3 isn't really an oscilloscope — it's a multi-instrument lab that happens to include a 2-channel oscilloscope alongside 13 other tools. The 16-channel logic analyzer is its killer feature for embedded work: you can monitor SPI, I2C, GPIO pins, and PWM outputs simultaneously, something a 4-channel scope simply cannot do. WaveForms software is genuinely excellent — one of the best oscilloscope software experiences on any platform. As a pure oscilloscope, the 125MSa/s sample rate and 32Kpt memory are real limitations that you'll notice on any non-trivial analog signal. This is the right tool if you need a logic analyzer AND a scope AND a function generator and can only buy one device — especially for embedded development and student labs. If you primarily need to measure analog signals or capture long waveforms, a dedicated benchtop scope will serve you better.
Rigol DS1054Z
The Rigol DS1054Z is the default recommendation in every electronics forum for a reason — it earned that reputation over a decade of consistent performance. Four channels, 12Mpt memory, comprehensive protocol decoding, and an absurd number of trigger types for ~$349 is a package that nothing in this price range matched for years. The 50MHz bandwidth is the only real limitation, and the well-documented hack to unlock 100MHz makes even that a manageable concern. Yes, the newer Rigol DHO924S has better specs in nearly every category — but the DS1054Z has something no spec sheet can quantify: years of solved problems, answered questions, and tutorials from the EEVblog and r/AskElectronics communities. If you're buying your first serious oscilloscope and want to minimize frustration, this is still a great choice. If you can stretch to $449, the DHO924S is the better buy in 2026.