The Keysight E2677A InfiniiMax differential probe head delivers 12 GHz bandwidth for precision measurement of high-speed differential signals in advanced circuit environments. This probe head integrates with Keysight InfiniiMax probe amplifiers and compatible Infiniium oscilloscopes to enable accurate signal capture with minimal loading and distortion.
Technical Specifications
Electrical Performance
• Bandwidth: 12 GHz specified, 12.5 GHz typical
• Input impedance: 100 Ω nominal
• Attenuation ratio: 10:1 typical
• Maximum input voltage: ±15 V (DC + peak AC) or ±5 V (DC + peak AC)
• Input capacitance: ≤270 fF or <0.2 pF
• Input inductance: <0.5 nH
• Rise time: <30 ps
Physical Configuration
• Lead length: 4 inches
• Variable lead span: 0.2–3.3 mm (8–130 mils)
• Probe body: Stainless steel
• Probe tip: Tungsten
• Connection options: Solder-in, socketed
• Damping resistors: 20 full bandwidth, 10 medium bandwidth
Operating Environment
• Temperature range: -40°C to +85°C
• Extreme temperature range: -55°C to +150°C with extension cables
– Key Features
• Differential probing architecture minimizes crosstalk and common-mode noise for precise differential measurements
• Low input capacitance (≤270 fF) reduces circuit loading and signal distortion
• Sub-30 ps rise time supports clean pulse edge acquisition
• Compact form factor enables access to densely populated boards
• Dual connection modes accommodate both permanent solder-in and temporary socketed installations
• Tungsten probe tips provide durability and stable contact
– Typical Applications
• High-speed serial bus characterization (differential pairs)
• Power integrity and signal integrity analysis on advanced PCBs
• Mixed-signal circuit validation during design verification
• Transient capture on differential clock and data signals
– Compatibility & Integration
The E2677A probe head connects directly to Keysight InfiniiMax probe amplifiers (InfiniiMax I and II series) and interfaces with Infiniium DSO/DSA 80000 and DSO/DSA 90000 oscilloscopes. This architecture decouples probe front-end design from oscilloscope analog-to-digital conversion, enabling flexible measurement configurations across multiple instrument generations.
