The Tektronix TDS684C is a four-channel digital real-time oscilloscope built for high-speed signal analysis, characterization, and troubleshooting in demanding electronic design environments. It delivers 1 GHz bandwidth with 5 GS/s simultaneous sampling across all channels, enabling precise capture of transient and repetitive signals. The color VGA display (640 × 480 pixels) and advanced triggering system provide intuitive waveform visualization and flexible acquisition control. Eight-bit vertical resolution expands to 12-bit with Hi-Res mode, supporting vertical measurements from 1 mV/div to 10 V/div with ±1.5% accuracy. Record length ranges from 500 to 15,000 points per channel, with multiple acquisition modes including Peak Detect (captures 1 ns glitches), Sample, Envelope, Average (up to 10,000 waveforms), and Single Sequence. Timing measurements achieve approximately 50 ps accuracy at 5 GS/s, while trigger jitter remains 8 ps RMS (typical). The time base stability of ±100 ppm combined with ±25 ns channel-to-channel deskew range ensures reliable multi-channel synchronization.
Technical Specifications
• Bandwidth: 1 GHz
• Channels: 4
• Sample Rate: 5 GS/s per channel (simultaneous)
• Vertical Resolution: 8-bit standard; 12-bit with Hi-Res mode
• Vertical Sensitivity: 1 mV/div to 10 V/div
• Vertical Accuracy: ±1.5%
• Time Measurement Accuracy: ~50 ps at 5 GS/s
• Time Base Accuracy: ±100 ppm
• Trigger Jitter: 8 ps RMS (typical)
• Record Length: 500 to 15,000 points per channel
• Channel-to-Channel Deskew: ±25 ns
• Display: Color VGA, 640 × 480 pixels
– Key Features
• Edge, Logic, Pulse Width, Runt, Setup/Hold, Slew Rate, and Timeout trigger modes
• Delayed triggering by time, events, or combined event/time criteria
• Peak Detect acquisition captures 1 ns glitches at all real-time sampling rates
• Envelope mode records maximum and minimum values across multiple acquisitions
• Average mode processes 2 to 10,000 waveforms
• Waveform display styles: dots, vectors, variable persistence, infinite persistence, intensified samples
• User-definable color for waveforms, text, graticules, and cursors with collision highlighting
• Video Trigger option (05) supports NTSC, PAL, and HDTV line, field, and pixel triggering
– Typical Applications
• High-speed digital and analog circuit characterization
• Signal integrity analysis and timing verification
• Glitch detection and transient capture
• Multi-channel synchronization and protocol analysis
