HP / Agilent 54120B Digitizing oscilloscope mainframe

The HP/Agilent 54120B Digitizing Oscilloscope Mainframe is a signal acquisition instrument delivering up to 12.4 GHz bandwidth with picosecond-level time resolution. Built around a color display and fully programmable architecture, this mainframe supports 4-channel test set configurations and integrates time-domain reflectometry for comprehensive characterization. The 54120B executes automated, statistical, and network measurements with 10 ps time interval accuracy and 0.4% vertical measurement accuracy, making it suitable for high-speed digital, telecom, interconnect, and microwave applications. Vertical resolution reaches 32 microvolts across its measurement range. The instrument operates under HPIB programmable control, enabling seamless integration into automated test environments. Service and programming documentation are available to support deployment and system integration.

Technical Specifications

Bandwidth: Up to 12.4 GHz

Time Interval Accuracy: 10 ps

Time Interval Resolution: 0.25 ps

Vertical Accuracy: 0.4%

Vertical Resolution: 32 microvolts

Display: Color

Channels: Compatible with 4-channel test sets

Time Domain Reflectometry: Integrated

Programmability: Fully HPIB programmable

Power Supply: 115/230 VAC, -25% to +10%, 48-66 Hz

Power Consumption: 270 watts nominal, 400 VA maximum (with four-channel test set)

Weight: Approximately 20.5 kg (45 lb)

Key Features

Automated measurement suite including basic, statistical, network, and pulse parameter analysis

Picosecond time resolution and high vertical sensitivity for low-level signal detection

Integrated TDR for transmission line and interconnect characterization

HPIB programming interface for test system automation

Operating range: +10°C to +35°C; altitude to 4602 meters (15,000 ft)

Typical Applications

High-speed digital device characterization

Interconnect and circuit analysis

High-speed telecom signal measurement

Microwave design and validation

Compatibility & Integration The 54120B mainframe accepts multiple test set options: HP 54121A (4-Channel), HP 54122A (12.4 GHz Four Channel), HP 54123A (34 GHz Four Channel), HP 54124A (50 GHz Four Channel), and HP 54121T Systems configurations.