The Keysight N2797A Extreme Temperature Active Probe delivers 1.5 GHz bandwidth for high-speed signal acquisition across demanding thermal environments. This high-impedance, single-ended probe minimizes loading on the device under test with 1 MΩ input resistance and 1 pF input capacitance, preserving signal integrity in extreme temperature conditions from -40°C to +85°C. The 10:1 attenuation ratio, ±8 V dynamic input range, and ±12 V offset range support precise measurements across a wide variety of test scenarios. Its 233 ps rise time enables accurate characterization of fast digital transitions. The probe connects via Keysight AutoProbe interface with direct power delivery—no external supply required. A 2-meter cable and integrated white LED headlight complete the design for laboratory and chamber-based testing applications.
Technical Specifications
• Bandwidth: 1.5 GHz
• System Bandwidth (with Keysight Oscilloscope): 1 GHz
• Rise Time: 233 ps
• Input Resistance: 1 MΩ (DC)
• Input Capacitance: 1 pF
• Attenuation Ratio: 10:1 ± 0.5%
• Dynamic Input Range: ±8 V (DC or peak AC)
• Offset Range: ±12 V
• Operating Temperature Range: -40°C to +85°C
• Cable Length: 2 meters
• Probe Weight: ~108 g
– Key Features
• High input impedance (1 MΩ) with minimal capacitive loading (1 pF) for low-impact signal acquisition
• Wide dynamic range and offset capability for flexible measurement setups
• AutoProbe interface with integrated power delivery eliminates external supply requirements
• Integrated white LED headlight for probe tip visibility in confined test areas
• Comprehensive accessory kit: solderable tips, rigid tips, flex nose clip, pico hook, Y-lead adapters (9 cm and 6 cm), right-angle ground, ground blade, and color-coded identification rings
• Replacement accessories available via N2798A accessory kit
– Typical Applications
• High-speed digital system design and debug
• Component characterization in thermal chambers
• Environmental and extreme-temperature field testing
• Educational research requiring precise signal fidelity
– Compatibility & Integration
The N2797A integrates with Keysight InfiniiVision (3000 X, 3000T X, 4000 X, 6000 X, 5000, 6000, 7000 Series) and Infiniium (9000, S-Series, 90000A, 90000X, 90000Q, Z-Series) oscilloscope families via AutoProbe interface.


















