The Tektronix TDS620A is a 500 MHz digitizing oscilloscope built for signal acquisition, display, and analysis in demanding electronic test environments. This two-channel instrument delivers real-time waveform capture at up to 2 GS/s per channel, complemented by two auxiliary channels and segmented acquisition memory for intermittent signal detection. Advanced triggering—including edge, logic, glitch (1 ns), runt, pattern, state, slew rate, and setup & hold violation—captures critical events reliably. The 8-bit vertical resolution spans 1 mV/div to 10 V/div with ±1.5% accuracy, while the timebase extends from 500 ps/div to 5 s/div at ±100 ppm accuracy. A high-resolution color display with infinite and variable persistence, zoom functionality, and 25 automatic measurements supports fast troubleshooting and detailed analysis. Optional Advanced DSP Math enables FFT analysis from DC to 500 MHz with selectable transform sizes (500 to 10,000 points), windowing options, and dBV RMS or linear RMS amplitude display. Integral, differential, and arithmetic operators (add, subtract, multiply, divide, invert) streamline signal processing. Waveform limit testing compares acquired signals against reference limits for validation workflows. GPIB (IEEE-488.2) connectivity enables full programmability, while optional RS-232/Centronics and VGA outputs support external integration and hardcopy output.
Technical Specifications
• Analog Bandwidth: 500 MHz
• Sample Rate: 2 GS/s per channel
• Channels: 2 main + 2 auxiliary
• Record Length: 2,000 points per channel
• Vertical Resolution: 8-bit
• Vertical Sensitivity: 1 mV/div to 10 V/div
• Vertical Accuracy: ±1.5%
• Input Coupling: AC, DC, GND
• Input Impedance: 1 MΩ || 10 pF or 50 Ω
• Maximum Input Voltage: ±400 V (DC + peak AC), derated 20 dB/decade above 1 MHz
• Channel Isolation: >100:1 at 100 MHz; >30:1 at bandwidth
• Timebase: 500 ps/div to 5 s/div
• Timebase Accuracy: ±100 ppm
– Key Features
• Digital Real-Time™ architecture for non-recurring event capture
• Segmented Acquisition Memory for multi-segment waveform storage
• Edge, logic, glitch (1 ns), runt, pattern, state, slew rate, and setup & hold violation triggering
• Optional video trigger (NTSC, PAL, SECAM, HDTV, FlexFormat™)
• FFT analysis: DC to 500 MHz, 55–65 dB SNR, rectangular/Hamming/Hanning/Blackman-Harris windowing
• Average, Envelope, and Hi-Res acquisition modes
• 25 automatic measurements and waveform limit testing
• Color VGA display with color grading and persistence control
– Typical Applications
Signal characterization, frequency-domain analysis, video signal validation, intermittent fault isolation, and automated waveform compliance testing.
– Compatibility & Integration
GPIB (IEEE-488.2) for instrument control and measurement automation. Optional RS-232/Centronics hardcopy interface and VGA output for external displays. Floppy disk drive option (1F) for setup and waveform archival.
