The Keysight 86112A is a dual-channel electrical module for Infiniium DCA sampling oscilloscopes, delivering precision waveform acquisition up to 20 GHz per channel. This plug-in module combines user-selectable bandwidth modes with exceptional noise performance to enable signal analysis across high-speed digital design, semiconductor testing, and telecommunications applications.
Technical Specifications
• Channels: 2 independent electrical channels
• Bandwidth: User-selectable 12.4 GHz or 20 GHz; optional HBW mode extends to 30 GHz
• Maximum Input Signal: ±2 VDC per channel
• Input Connectors: 3.5 mm male connectors with factory-installed 3.5 mm (f-f) connector savers
• Noise Performance:
– 0.25 mV RMS at 12.4 GHz bandwidth
– 0.5 mV RMS at 20 GHz or 30 GHz bandwidth
• Weight: Approximately 5 lbs
– Key Features
• Dual Independent Channels: Acquire and analyze two signals simultaneously with identical specifications per channel.
• Optimized Bandwidth Modes: The 12.4 GHz mode minimizes noise floor for small-signal measurements; 20 GHz mode prioritizes high-fidelity capture of very high-speed waveforms.
• Optional High-Bandwidth Extension: HBW option provides 30 GHz bandwidth for extended frequency characterization.
• Low Noise Architecture: Characteristic noise of 0.25 mV at 12.4 GHz enables precision measurement of low-amplitude signals.
– Typical Applications
• High-speed digital interface characterization and verification
• Semiconductor development and electrical signal analysis
• Optical communication system characterization
• Telecommunications signal analysis requiring accurate waveform capture
– Compatibility & Integration
The 86112A integrates directly into Keysight Infiniium DCA sampling oscilloscopes, including 86100A series mainframes. Forward compatibility extends to legacy Agilent platforms from the 83480A and 54750A families, enabling module migration across platforms.

















