The Keysight (Agilent) 83484A is a dual-channel electrical sampling module designed for high-speed digital communications analysis. Featuring two electrical channels with selectable bandwidths of 26.5 GHz and 50 GHz, it provides flexibility to optimize either for low noise or high-fidelity signal measurement.
Specifications
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered directly through the mainframe slot |
| Operating Temperature | 15 °C to 35 °C |
| Dimensions (W×H×D) | 77 mm × 183 mm × 282 mm |
| Weight | 1.36 kg |
Signal Input Characteristics
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Connector Type | 2.4 mm (male) |
| Maximum Safe Input Voltage | ± 2 Vdc |
| Nominal Input Impedance | 50 Ω |
Bandwidth and Time Domain Performance
| Parameter | Value |
|---|---|
| Electrical Bandwidth Settings | 26.5 GHz or 50 GHz (user-selectable) |
Vertical and Amplitude Specifications
| Parameter | Value |
|---|---|
| Characteristic RMS Noise (26.5 GHz BW) | 0.25 mV |
| Characteristic RMS Noise (50 GHz BW) | 0.45 mV |
| Scale Factor Range | 1 mV/div to 100 mV/div |
Physical and Mechanical Specifications
| Parameter | Value |
|---|---|
| Mainframe Compatibility | HP/Agilent 83480A, 54750A, and Keysight 86100A/B/C Infiniium DCA series |
Performance
| Parameter | Value |
|---|---|
| Calculated Rise Time (50 GHz) | ≤ 7.0 ps |
| Calculated Rise Time (26.5 GHz) | ≤ 13.2 ps |
| Channel Offset Range | ±500 mV |
Electrical Specifications
| Parameter | Value |
|---|---|
| Channel-to-Channel Isolation (DC to 26.5 GHz) | ≥ 50 dB |
| Channel-to-Channel Isolation (26.5 GHz to 50 GHz) | ≥ 40 dB |
| Dynamic Range | ±400 mV (relative to channel offset) |
| Input Coupling | DC |
Reflections & Aberrations
| Parameter | Value |
|---|---|
| Reflection Coefficient (DC to 26.5 GHz) | ≤ 5% |
| Reflection Coefficient (26.5 to 50 GHz) | ≤ 10% |
Technology
Electrical Sampling
Applications
High-speed digital communications analysis, eye diagram and jitter measurements