HP / Agilent 54641A 2-Channel, 350 MHz Oscilloscope

The HP/Agilent 54641A is a 2-channel digital storage oscilloscope delivering 350 MHz bandwidth and 2 GSa/s maximum sample rate for demanding electronics testing and signal analysis. The instrument combines 8 MB of interleaved MegaZoom deep memory with a high-definition 7-inch monochrome CRT display capable of rendering up to 25 million vectors per second. Advanced triggering across edge, pulse width, pattern, and protocol modes - including CAN, I2C, LIN, SPI, and USB - enables precise signal capture in complex systems.

Technical Specifications

Bandwidth: 350 MHz

Channels: 2 analog

Maximum Sample Rate: 2 GSa/s (interleaved)

Record Length: 8 MB interleaved (4 MB per channel)

Vertical Resolution: 8 bits

Vertical Sensitivity: 2 mV/div to 5 V/div

Vertical Accuracy: ±(2% of reading + 0.02 div)

Input Coupling: AC (~10 Hz), DC, Noise Reject, HF Reject, LF Reject (~50 kHz)

Horizontal Sweep Speed: 1 ns/div to 50 s/div

Horizontal Accuracy: ±0.01%

Display: 7-inch monochrome CRT, high-definition with 32 intensity levels

Update Rate: Up to 25 million vectors/sec

Trigger Sensitivity (Analog): <10 mV/div for ≥10 mV/div settings; greater of 1 div or 5 mV for <10 mV/div settings

External Trigger Sensitivity: <100 mV (DC to 100 MHz), <200 mV (100 MHz to max bandwidth)

Key Features

MegaZoom deep memory architecture with 32 intensity mapping levels for waveform analysis

Protocol-aware triggering: CAN, I2C, LIN, SPI, USB with frame-level synchronization

Waveform math functions: subtract, multiply, integrate, differentiate

Fast Fourier Transform (FFT) for spectrum analysis

Automatic measurements and manual cursor-based analysis

Built-in 1.44 MB floppy disk drive for waveform storage and screen capture

Connectivity & Integration

Parallel port and RS-232 interface standard

Optional GPIB interface module for automated test systems

Data transfer to PC via standard interfaces

Typical Applications Electronics debugging, signal integrity analysis, embedded systems development, and protocol validation in automotive, industrial control, and communications environments.