Agilent/Keysight 54651A

The Agilent/Keysight 54651A is a mixed-signal oscilloscope within the 54600 Series, combining analog and digital channels for simultaneous capture and analysis of complex signal interactions. Built for embedded systems debugging and mixed-signal design verification, it delivers deep acquisition memory, high-speed sampling, and protocol-aware triggering in a single instrument.

– Technical Specifications

The 54651A provides a 2+16 channel configuration: two analog oscilloscope channels paired with 16 digital logic channels. Acquisition memory reaches 4 MB to 8 MB standard, enabling extended signal capture without sample rate compromise. Maximum sampling rate reaches 2 GSa/s with waveform display update rates to 3.0 million points per second.

– Key Features

• MegaZoom Deep Memory — 4 MB to 8 MB acquisition memory for extended signal duration capture with full zoom capability on waveform details
• Mixed-Signal Architecture — 2 analog + 16 digital logic channels in unified display, eliminating the need for separate instruments
• High-Definition Display — Ultra-responsive refresh rate providing near-instantaneous waveform updates and clear visualization of signal anomalies
• Protocol Triggering — Native support for CAN, I2C, LIN, SPI, and USB serial protocols for precise isolation of complex signal conditions
• High Waveform Update Rate — Up to 2 GSa/s sampling with 3.0 million points per second display throughput
• Autoscale Function — Single-button setup automatically adjusts voltage, time, and trigger parameters across test points
• Autostore Capability — Live waveforms display at full brightness while retained acquisitions appear at half brightness for historical signal reference
• Automatic & Manual Measurements — Built-in voltage, frequency, and time measurements plus user-defined cursor analysis
• Peak Detect — Captures narrow glitches and transient events that standard acquisition modes may miss

– Typical Applications

Ideal for embedded systems development, microcontroller debugging, and mixed-signal circuit validation where simultaneous analog and digital signal observation is required.

– Compatibility & Integration

Member of the Agilent 54600 Series family with bandwidth and memory options across the product line.