Agilent/Keysight 54645A

The Agilent/Keysight 54645A is a 100 MHz, dual-channel digital oscilloscope engineered for signal acquisition and analysis across applications ranging from general circuit troubleshooting to detailed transient characterization. The instrument combines 1 MB memory per channel with MegaZoom technology, delivering responsive waveform navigation and deep memory capture capabilities. Maximum sample rates reach 10 GSa/s in repetitive mode, with 200 MSa/s single-shot performance and 20 MSa/s continuous acquisition.

The display updates at up to 3 million points per second, enabling real-time visualization of complex signals.

Technical Specifications

• Bandwidth: 100 MHz


• Channels: 2


• Memory depth: 1 MB per channel


• Sample rate: 200 MSa/s (maximum), 20 MSa/s (single shot), 10 GSa/s (repetitive)


• Display update rate: Up to 3 million points/s Vertical System


• Resolution: 8 bits


• Sensitivity: 2 mV to 5 V/div


• DC gain accuracy: ±2%


• Input impedance: 1 MΩ, approximately 13 pF


• Maximum input: 400 V (DC + peak AC)


• Input coupling: AC, DC, GND on CH 1 & 2


• Bandwidth limit: Approximately 20 MHz


• CMRR: Approximately 20 dB at 50 MHz Horizontal System


• Sweep speed: 2 ns/div to 50 s/div


• Horizontal accuracy: ±0.01%


• Horizontal resolution: 100 ps Triggering


• Sources: CH 1, 2, Line, External


• Trigger sensitivity: DC to 25 MHz


• Glitch triggering: >8 ns


• Pulse width triggering: >500 ps


• Pattern triggering: High/low/don't-care across channels


• Video triggering: 525/60 Hz (NTSC), 625/50 Hz (PAL), 875/60 Hz Physical


• Dimensions: 172 mm H × 322 mm W × 317 mm D


• Weight: Approximately 6.2 kg


• Power: 100–240 Vac, 48–440 Hz, 300 VA maximum

Key Features

• MegaZoom technology enables intuitive panning and zooming through deep memory waveforms


• Transition, glitch, and pulse-width triggering for advanced signal capture


• Voltage and time cursors for manual measurement


• Channel inversion on CH 1 & 2

Typical Applications

• Digital and analog circuit debugging


• Signal integrity analysis


• Transient event capture


• Video signal characterization

Compatibility & Integration GPIB interface module (Agilent 54650A) provides remote control and direct printing capability. Optional accessories include magnetic CRT shielding, display shield, and enhanced video trigger.