Digilent Analog Discovery 3 vs Rigol DHO814
Head-to-head spec comparison to help you pick the right scope for your bench.
Spec-by-Spec Comparison
| Spec | Digilent Analog Discovery 3 | Rigol DHO814 |
|---|---|---|
| Bandwidth | 50 MHz | 100 MHz |
| Sample Rate | 0.125 GSa/s | 1.25 GSa/s |
| Channels | 2 | 4 |
| Memory Depth | 32 Kpts | 25 Mpts |
| Display Size | N/A | 7" |
| Weight | 0.15 kg | 1.78 kg |
| Price | $433.14 | $549 |
| Rating | 7.5/10 | 7.5/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | No |
| WiFi | No | No |
| Battery | No | No |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Digilent Analog Discovery 3
Pros
- 2 analog channels for simultaneous signal comparison
- 50 MHz nominal bandwidth; 32 Kpts acquisition memory
- Protocol decoding: SPI, I2C, UART, CAN
- Includes a signal-generator function for stimulus and response work
Cons
- Two analog channels limit simultaneous bus and power-rail captures
- 32 Kpts acquisition memory limits long high-rate captures
- Specification-based assessment; no hands-on measurement record is documented
Rigol DHO814
Pros
- 4 analog channels for simultaneous signal comparison
- 100 MHz nominal bandwidth; 25 Mpts acquisition memory
- Protocol decoding: SPI, I2C, UART, CAN
Cons
- 1.25 GSa/s single-channel, 625 MSa/s dual-channel, 312.5 MSa/s full-channel; 25 Mpts single-channel, 10 Mpts dual-channel, 5 Mpts full-channel. Maximum rate and depth depend on active channel configuration.
- Specification-based assessment; no hands-on measurement record is documented
Our Verdicts
Digilent Analog Discovery 3
The Digilent Analog Discovery 3 pairs 50 MHz nominal bandwidth with 2 analog channels and 32 Kpts acquisition memory. Its two channels suit input/output or clock/data comparisons, but leave less room for simultaneous power-rail debugging. Protocol decoding can help interpret supported serial buses; check the exact included decoder options. The short acquisition buffer makes capture duration a particular constraint at high sample rates. This recommendation is based on listed specifications, without documented hands-on performance testing.
Rigol DHO814
The Rigol DHO814 pairs 100 MHz nominal bandwidth with 4 analog channels and 25 Mpts acquisition memory. Four analog channels let you compare multiple rails or related signals in one capture. Protocol decoding can help interpret supported serial buses; check the exact included decoder options. Choose capture duration and sample rate together; maximum memory and sample rate may depend on the enabled channel count. This recommendation is based on listed specifications, without documented hands-on performance testing. Published acquisition limits: 1.25 GSa/s single-channel, 625 MSa/s dual-channel, 312.5 MSa/s full-channel; 25 Mpts single-channel, 10 Mpts dual-channel, 5 Mpts full-channel. Maximum rate and depth depend on active channel configuration.