The Tektronix 80E04 is a dual-channel sampling module purpose-built for high-performance Time Domain Reflectometry (TDR) applications. It integrates with Tektronix oscilloscopes to deliver advanced signal acquisition and analysis capabilities, enabling precise characterization of high-speed electrical signals, transmission line quality, impedance, and crosstalk. The module supports true differential TDR measurements alongside common-mode and single-ended testing, making it essential for engineers analyzing complex interconnects and high-speed digital systems.
Technical Specifications
Electrical Performance
• Bandwidth: 20 GHz (equivalent)
• Acquisition rise time: 17.5 ps or less
• TDR reflected rise time: 35 ps or less
• Incident rise time: Up to 23 ps
• Noise: 600 µVRMS (typical)
• TDR step amplitude: 250 mV with selectable polarity
• Source resistance: 50 Ohm ±0.5 Ohm
• Time coincidence between TDR steps: Adjustable to less than 1 ps
• Vertical sensitivity range: 10 mV to 1 V full scale
• DC vertical voltage accuracy: ±2 mV ±0.007 × Offset ±0.02 × (Vertical Value − Offset) within ±2°C of previous channel compensation
• ADC resolution: 14 bits full scale
– Key Features
• Dual-channel configuration with independent polarity selection per channel
• True differential TDR capability for transmission line characterization
• Crosstalk measurement mode using TDR step on one line while monitoring a second
• Independent incident step and receiver deskew for fixture and probe de-embedding
• Filter function for characterizing system performance with slower edge rates on compatible mainframes
• 3.5 mm female connectors; supports precision microwave connectors (2.92 mm, 2.4 mm, 1.85 mm) via related modules
– Typical Applications
Transmission line impedance profiling, differential and single-ended signal integrity analysis, crosstalk quantification, high-speed interconnect validation, and fixture/probe de-embedding for measurement accuracy.
– Compatibility & Integration
Works with CSA8000 Communications Signal Analyzer, TDS8000B Oscilloscope Digital Sampling, DSA8300 Series Sampling Oscilloscope, and 8000 Series Sampling Oscilloscopes. Supports Tektronix IConnect® TDR and VNA software. Compatible with P8018 20 GHz single-ended TDR probe.
