The Tektronix TDS794D is a four-channel digital phosphor oscilloscope delivering 2 GHz bandwidth and 4 GS/s real-time sample rate for capturing and analyzing complex signals with exceptional detail. DPO technology provides three-dimensional signal information—amplitude, time, and amplitude distribution over time—enabling rapid identification of intermittent events and signal anomalies. The instrument captures up to 200,000 waveforms per second with 1 ns peak detection and vertical resolution to 8-bit standard, expandable to 11-bits with averaging or 13-bits typical with Hi-res mode.

Technical Specifications

• Bandwidth: 2 GHz
• Channels: 4 independent inputs
• Real-Time Sample Rate: 4 GS/s maximum
• Vertical Resolution: 8-bit (256 levels); 11-bits with averaging; 13-bits typical (Hi-res)
• Vertical Sensitivity: 1 mV/div to 10 V/div (10 mV/div to 1 V/div in 50 Ω mode; 10 mV maximum on TDS794D)
• DC Gain Accuracy: ±1.0% (0.7% typical)
• DC Offset Accuracy: ±1.0%
• Peak Detection: 1 ns
• Input Impedance: 50 Ω
• Record Length: Standard 50k; optional up to 8M points
• Waveform Capture Rate: 200,000 waveforms/second
• DPO Display Density: 100M points/second
• Automatic Measurements: 29 functions with statistics
• Time Delay Range: 16 ns to 250 s
• Events Delay: 1 to 9,999,999 events
• FastFrame™ Segmentation: Up to 80,000 triggers/second from 50 to 5,000 points per frame

– Key Features

• Advanced triggering: auto, normal, single, delayed (time/events/combined), logic, pulse, and optional video (NTSC/PAL/HDTV)
• Communications triggering: mask testing, SONET/SDH, Fibre Channel
• Differential measurements up to 1.7 GHz (2.0 GHz with compatible probes)
• FFT and advanced math functions
• Histogram analysis with statistics
• Limit testing
• Channel deskew
• Non-volatile storage: 4 full 50k records; optional 1M or 2M with expanded capacity
• 10 front panel setups

– Interfaces & Storage

• GPIB (standard)
• Hardcopy output: printer, plotter (HPGL), data formats (MathCad, spreadsheets)
• Optional hardcopy interfaces: Centronics and R
• 3.5 in floppy drive (1.44 MB or 720 KB MS DOS)
• Iomega Zip/Zip Plus compatible