The Agilent/Keysight 83483A is a dual-channel electrical module for high-speed signal analysis with user-selectable bandwidths of 12.4 GHz and 20 GHz. This plug-in module integrates with compatible Agilent/Keysight mainframe systems including the 83480A and 86100 series, delivering two independent measurement channels optimized for either low-noise operation or maximum fidelity in pulse and eye-diagram measurements. The 83483A combines precision DC accuracy, ultralow jitter triggering, and configurable bandwidth selection to support demanding real-time waveform capture across multiple signal speeds.
Technical Specifications
Electrical Performance
• Bandwidth: 12.4 GHz or 20 GHz (–3 dB), user-selectable
• Transition time (10% to 90%): 17.5 ps at 20 GHz, 28.2 ps at 12.4 GHz (typical)
• Maximum RMS noise: 0.5 mV at 12.4 GHz (0.25 mV typical); 1 mV at 20 GHz (0.5 mV typical)
• Scale factor: 1 mV/div to 100 mV/div across 8 divisions
• Input dynamic range: ±400 mV relative to channel offset
• DC offset range: ±500 mV
• Input impedance: 50 ohm nominal
• Maximum safe input: 16 dBm peak AC; ±2 V DC
• Reflections (30 ps rise time): 5%
DC Measurement Accuracy
• Single voltage marker (12.4 GHz mode): ±0.4% FS ±2 mV ±1.5% reading ±2%/°C
• Single voltage marker (20 GHz mode): ±0.4% FS ±2 mV ±3% reading ±2%/°C
• Two-marker difference same channel (12.4 GHz): ±0.8% FS ±1.5% reading ±2%/°C
• Two-marker difference same channel (20 GHz): ±0.8% FS ±3% reading ±2%/°C
Trigger Port
• Bandwidth: DC to 100 MHz (limited mode); DC to 2.5 GHz (normal mode); 2.0 to 12 GHz (high-speed mode with Option 100)
• Trigger level range: ±1 V
• Maximum trigger signal: <2 V DC + 16 dBm peak AC
• Jitter (normal mode): <2.5 ps rms + 5E-5×delay at 2.5 GHz
• Jitter (high-speed mode): <2 ps rms typical (1.3 ps) for delays <100 ns
Physical
• Input connectors: 3.5 mm male
– Key Features
• Dual independent channels enable simultaneous two-channel measurements
• Selectable 12.4 GHz or 20 GHz bandwidth optimizes noise versus fidelity trade-off
• Sub-2 ps rms trigger jitter (high-speed mode) for precise timing capture
• Full-scale accuracy of ±0.4% supports quantitative pulse characterization
– Typical Applications
• High-speed digital signal integrity and characterization
• Optical transceiver electrical module measurements
• Broadband pulse and eye-diagram analysis
• Real-time waveform capture to 20 GHz
– Compatibility & Integration
This module plugs directly into Agilent 83480A, 86100A/B/C, and Keysight 86100X series mainframe systems, inheriting the mainframe's control, storage, and display capabilities.
