The Keysight N5442A is a precision BNC adapter that enables AutoProbe I probes and cables to operate with AutoProbe II oscilloscope interfaces. This interface converter bridges generational compatibility gaps within Keysight’s Infiniium oscilloscope ecosystem, allowing engineers to leverage existing probe investments across newer instrument platforms without signal degradation.
Maintaining 50 Ohm impedance on both input and output ensures signal integrity across the interface transition. The adapter supports direct connection of legacy AutoProbe I probe amplifiers, differential probes, and standard 50 Ohm BNC cables to modern Infiniium instruments, eliminating the need for complete probe replacement when upgrading oscilloscope platforms.
Technical Specifications
• Model: N5442A
• Manufacturer: Keysight Technologies
• Product Type: Precision BNC Adapter
• Input Interface: AutoProbe I
• Output Interface: AutoProbe II
• Impedance: 50 Ohms (input and output)
• Connector Type: Precision BNC
– Key Features
• Enables AutoProbe I probe compatibility with AutoProbe II oscilloscope interfaces
• Maintains 50 Ohm impedance at both input and output
• Precision BNC connectors for stable, low-loss connections
• Preserves signal integrity for high-frequency measurement applications
– Typical Applications
• Connecting InfiniiMax probe amplifiers to newer Infiniium oscilloscopes
• Interfacing N2750-series and N2818-series differential probes with current-generation platforms
• Extending the operational life of 1156A-58A active probes
• Deploying legacy 50 Ohm BNC cables on modern test benches
– Compatibility & Integration
Supported Oscilloscopes (AutoProbe II):
• Infiniium UXR-Series (13 GHz to 33 GHz)
• Infiniium Z-Series
• Infiniium V-Series
• Infiniium 90000 Q-Series
• Infiniium 90000 X-Series
Supported Probes & Cables (AutoProbe I):
• InfiniiMax I, II, and III+ Probe Amplifiers
• N2750A/51A/52A and N2750/1/2A InfiniiMode Differential Probes
• N2818A/19A Active Differential Probes
• N2792A and N2793A Differential Probes
• 1156A-58A Active Probes
• 50 Ohm BNC cables
