Agilent/Keysight N2777A

The Keysight N2777A InfiniiMode Solder-in Tips are direct-connection probe accessories engineered for high-speed differential signal integrity measurements. Supplied as a package of three tips, they integrate damping resistors to deliver flat frequency response across their rated bandwidth. These solder-in tips connect directly to device-under-test nodes, enabling semi-permanent probe placement for repetitive or long-duration measurements. They operate exclusively in differential mode, with inputs A and B connected to respective test nodes for optimal signal fidelity.

– Technical Specifications

• Bandwidth: Up to 2.5 GHz (with N2751A/N2752A probes); up to 1.5 GHz (with N2750A probe)
• Connection Type: Solder-in design for direct DUT attachment
• Internal Damping: Integrated damping resistors ensure flat frequency response
• Measurement Mode: Differential; requires A and B channel connections to test nodes
• Package Contents: Three tips per package

– Key Features

• Integrated damping resistors eliminate frequency response ripple across operating bandwidth
• Solder-in design eliminates mechanical probe contact issues
• Supports InfiniiMode measurement architecture
• Flat response enables accurate analog and digital signal acquisition

– Typical Applications

• High-speed differential signal acquisition in serial link characterization
• Signal integrity debugging on multilayer PCBs
• Long-duration or repetitive measurement campaigns requiring stable probe positioning
• Direct connection to test points where mechanical probe contact is impractical

– Compatibility & Integration

The N2777A tips are compatible with three InfiniiMode differential active probe models:

• Keysight N2750A (supports up to 1.5 GHz bandwidth)
• Keysight N2751A (supports up to 2.5 GHz bandwidth)
• Keysight N2752A (supports up to 2.5 GHz bandwidth)

These probes interface with Keysight Infiniium and InfiniiVision oscilloscope platforms via the AutoProbe connector. Infiniium 90000 Q/X-Series instruments may require the N5442A adapter for probe compatibility.