The Tektronix TDS460A is a 400 MHz, 4-channel digital storage oscilloscope engineered for design verification, production testing, troubleshooting, and signal analysis across power electronics, electro-mechanical research, and digital/analog applications. It combines 100 MS/s simultaneous sampling across all channels with 8-bit vertical resolution (expandable to 12-bit in Hi-Res mode) and flexible record lengths up to 120 kpts optional. The instrument captures transient events with 1.75 ns rise time and peak detect capability down to 10 ns pulse widths, while video triggering supports NTSC, PAL, SECAM, and custom formats with line rates from 10 kHz to 64 kHz.
Technical Specifications
Signal Acquisition
• Bandwidth: 400 MHz
• Channels: 4 (>100:1 isolation at 100 MHz)
• Sample Rate: 100 MS/s simultaneous on all channels
• Vertical Sensitivity: 1 mV/div to 10 V/div
• Vertical Resolution: 8-bit standard; 12-bit in Hi-Res mode
• DC Gain Accuracy: ±1.5%
• Rise Time: 1.75 ns
• Record Length: 30 kpts standard; 120 kpts optional (Opt. XL)
• Input Impedance: 1 MΩ || 15 pF or 50 Ω (selectable)
• Maximum Input Voltage: 300 V CAT II ±400 V peak (derated 20 dB/decade above 1 MHz)
• AC Coupled Low Frequency Limit: 1.5 kΩ; ±6 V (DC + AC peak)
Display & Processing
• CRT: 7-inch diagonal magnetic deflection
• Resolution: 640 × 480 pixels
• Waveform Functions: Interpolation (sin(x)/x or linear), Average, Envelope
• Automatic Measurements: 25 built-in functions
• Waveform Styles: Dots or vectors
– Key Features
• Simultaneous 4-channel acquisition eliminates skew
• Peak detect captures glitches at all real-time sampling rates
• Video triggering for broadcast and custom signal analysis
• Selectable input impedance (1 MΩ or 50 Ω) for flexible coupling
• Optional extended memory (120 kpts) for longer waveform capture
– Typical Applications
• Design verification and digital/analog circuit characterization
• Power electronics and switching transient analysis
• Electro-mechanical system troubleshooting
• Bio-physical signal acquisition
• Production test and manufacturing diagnostics
– Compatibility & Integration
External trigger input on rear panel accepts standard TTL/CMOS logic levels and analog signals to ±6 V, enabling synchronization with external test equipment and automated measurement systems.
