The Keysight (Agilent) 86112A is a dual-channel electrical receiver plug-in module designed for the Infiniium DCA (86100A/B/C) series sampling oscilloscopes. It features user-selectable bandwidths of 12.4 GHz or 20 GHz, combining high-fidelity waveform analysis with excellent noise performance for small signals.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | 2x 3.5 mm (f) RF inputs, proprietary mainframe backplane connector |
| Display | None (uses mainframe display) |
| Recommended Calibration Cycle | 1 year |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered directly by the host mainframe slot |
| Operating Temperature | 10 to 40 °C |
| Weight | 1.2 kg |
Input Channel Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Connector Type | 3.5 mm (female) |
| Input Impedance | 50 Ω nominal |
| Coupling | DC |
| Maximum Input Voltage | ±2 Vdc |
Bandwidth & Rise Time
| Parameter | Value |
|---|---|
| Analog Bandwidth (Low BW Mode) | 12.4 GHz |
| Analog Bandwidth (High BW Mode) | 20 GHz |
| Calculated Rise Time (10% to 90%, Low BW Mode) | 28.2 ps |
| Calculated Rise Time (10% to 90%, High BW Mode) | 17.5 ps |
Vertical & Noise Performance
| Parameter | Value |
|---|---|
| Characteristic RMS Noise (Low BW Mode) | 0.25 mV |
| Characteristic RMS Noise (High BW Mode) | 0.5 mV |
| Maximum RMS Noise (Low BW Mode) | 0.5 mV |
| Maximum RMS Noise (High BW Mode) | 1.0 mV |
| Vertical Scale Factor Range | 1 mV/div to 100 mV/div |
Mainframe Compatibility & Power
| Parameter | Value |
|---|---|
| Compatible Oscilloscope Mainframes | 86100A, 86100B, 86100C Infiniium DCA/DCA-J |
| Slot Occupancy Requirements | Single slot |
Environmental & Reliability
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +70 °C |
Compliance & Calibration
| Parameter | Value |
|---|---|
| Recommended Warm-Up Time | 1 hour |
Performance
| Parameter | Value |
|---|---|
| Vertical Offset Range | ±500 mV |
Electrical Input
| Parameter | Value |
|---|---|
| Nominal Reflections (Low BW Mode) | 5% (for <= 12.4 GHz) |
| Nominal Reflections (High BW Mode) | 13% (for <= 20 GHz) |
| Maximum Safe RF Input Power | 16 dBm |
| Dynamic Range | ±400 mV (relative to channel offset) |
Technology
Sampling Oscilloscope
Applications
High-speed electrical waveform characterization and digital communications analysis