The Keysight N2802A InfiniiMax III Series Probe Amplifier is a high-bandwidth signal conditioning instrument for precision measurement of high-speed digital and RF circuits. This active probe amplifier delivers 25 GHz bandwidth with 17.4 psec rise time, enabling accurate acquisition of fast transient signals while maintaining ultra-low loading on the device under test. The amplifier employs proprietary 200 GHz fT indium phosphide IC technology with backside ground vias and thick film construction to achieve minimal noise and exceptional signal fidelity across demanding measurement applications.
Technical Specifications
• Bandwidth: 25 GHz
• Rise Time: 17.4 psec
• DC Attenuation Ratio: 6:1 (3:1 with 200 Ω ZIF tip)
• DC Input Impedance: Differential 100 kΩ ±2%; Single-ended 50 kΩ ±2%
• Input Voltage Range: 1.6 Vpp (0.8 Vpp with 200 Ω ZIF tip)
• Input Common Mode Range: ±12 V at DC to 250 Hz, ±2.5 V at >250 Hz (±6 V at DC to 250 Hz, ±1.25 V at >250 Hz with 200 Ω ZIF tip)
• Offset Range: ±16 V (single-ended probing)
• Input Resistance @ >10 kHz: Differential 1 kΩ; Single-ended 500 Ω
• Input Capacitance: Differential 32 fF; Single-ended 48 fF (ZIF probe head)
• IC Process Technology: 200 GHz fT InP with backside ground vias and thick film technology
– Key Features
• Ultra-low DUT loading preserves circuit signal integrity
• Measured S-parameters for accurate response correction
• Low probe and oscilloscope system noise floor
• Probe bandwidth upgradable for future measurement requirements
• Multiple interchangeable probe heads for varied test configurations
– Typical Applications
High-speed digital circuit characterization, signal integrity verification, jitter analysis, and RF/microwave probe measurements in development and validation environments.
– Compatibility & Integration
The N2802A integrates with Keysight Infiniium oscilloscopes: V-Series and Z-Series (Infiniium 5.50+), 9000 Q/X-Series (Infiniium 5.50+), and UXR-Series 40 GHz and higher (with N2852A Adapter, Infiniium 10.0+). Compatible probe heads include the N5445A Browser, N5444A 2.92mm/3.5mm/SMA, N5439A ZIF, MX0109A Extreme Temperature Solder-In, and N5441A Solder-In variants.
