Keysight InfiniiVision 4000X vs HD3
Representative models: DSOX4034A (4000X, 350 MHz, 8-bit) and HD304DSO (HD3, 200 MHz, 14-bit).
| Specification | DSOX4034A InfiniiVision 4000X | HD304DSO InfiniiVision HD3 |
|---|---|---|
| Bandwidth | 350 MHz ★ | 200 MHz |
| Sample Rate | 5 GSa/s ★ | 3.2 GSa/s |
| Memory Depth | 4 Mpts | 50 Mpts ★ |
| Analog Channels | 4 | 4 |
| Digital Channels | 0 / 16 (MSO) | 0 / 16 (MSO) |
| ADC Resolution | 8-bit | 14-bit ★ |
| Waveform Update Rate | 1M wfms/s | 1.3M wfms/s ★ |
| Display Size | 12.1" (touch) ★ | 10.1" (touch) |
| Features | Zone TriggeringSegmented MemoryTouch ScreenInfiniiScan | WaveGenTouch Screen14-bit ADCFRA50 Mpts memory |
The 4000X and HD3 represent different measurement philosophies at a similar professional tier. The 4000X offers higher bandwidth (up to 1.5 GHz vs 200 MHz), faster sample rate, and a larger 12.1-inch display with InfiniiScan automated anomaly detection. The HD3 counters with a 14-bit ADC — providing 64× better vertical resolution — and 50 Mpts memory depth (12.5× more than the 4000X), enabling precision measurements of small signal variations across long captures. Both support 16-channel MSO. If bandwidth and display size are the priority, choose the 4000X; if measurement precision, memory depth, and FRA are critical, choose the HD3.