The Keysight (Agilent/HP) 54751A is a dual-channel, 20 GHz electrical sampling module designed for use with the HP/Agilent 54750A and 83480A digital communications analyzer mainframes. It features user-selectable bandwidth modes (20 GHz and 12.4 GHz) to optimize the balance between high-frequency response and low noise floor.

Specifications

General

ParameterValue
InterfacesMainframe backplane connector
DisplayNone (uses mainframe display)

Physical

ParameterValue
Power SupplyPowered by mainframe plug-in slot
Operating Temperature15 °C to 35 °C (specified); 10 °C to 40 °C (operating)
Dimensions (W×H×D)97 mm × 89 mm × 318 mm

Module Overview & Compatibility

ParameterValue
Module TypeElectrical Sampling Module
Supported Mainframe SeriesHP / Agilent 54750A, 83480A
Slot Width Requirement1 slot
Number of Input Channels2

Electrical Channel Specifications

ParameterValue
Electrical Bandwidth20 GHz (High Bandwidth Mode) / 12.4 GHz (Low Noise Mode)
Risetime (10% to 90%)17.5 ps (20 GHz Mode) / 28.2 ps (12.4 GHz Mode)
Vertical Sensitivity Range1 mV/div to 100 mV/div
Input Impedance50 Ohm
Input Connector Type3.5 mm (female)

Signal Integrity & Noise Performance

ParameterValue
RMS Noise Floor (Maximum)1.0 mV (20 GHz Mode) / 0.5 mV (12.4 GHz Mode)

Vertical System

ParameterValue
Offset Range±1.0 V
Dynamic Range±400 mV relative to channel offset
Vertical Scale Factor Range1 mV/div to 100 mV/div
Selectable Bandwidth Limits12.4 GHz, 20 GHz
Calculated Risetime (20 GHz Mode)17.5 ps
Calculated Risetime (12.4 GHz Mode)28.2 ps
RMS Noise (Typical, 12.4 GHz Mode)0.3 mV
RMS Noise (Typical, 20 GHz Mode)0.7 mV
RMS Noise (Maximum, 12.4 GHz Mode)0.5 mV
RMS Noise (Maximum, 20 GHz Mode)1.0 mV

Technology

Electrical Sampling

Applications

High-speed digital signal analysis, optical transceiver testing, and TDR analysis