Keysight (Agilent) U2542A 500 kSa/s USB Modular Simultaneous Data Acquisition

The Keysight U2542A is a USB modular data acquisition device delivering simultaneous 16-bit analog input sampling at 500 kSa/s across four channels. It functions as both a precision measurement instrument and a portable oscilloscope with basic triggering, dual 12-bit analog outputs at 1 MSa/s, 24-bit digital I/O, and two general-purpose counter channels. The unit operates standalone or integrates into a U2781A chassis for expanded system configurations.

– Technical Specifications

• Analog Input: 4 simultaneous channels, 16-bit resolution, 500 kSa/s per channel
• Input Ranges (Bipolar): ±10 V, ±5 V, ±2.5 V, ±1.25 V
• Analog Output: 2 channels, 12-bit resolution, 1 MSa/s update rate, 5 mA per channel max current; supports predefined and arbitrary waveforms
• Digital I/O: 24-bit programmable TTL channels
• Counter Channels: 2 general-purpose digital counters
• Interface: High-speed USB 2.0 (USBTMC-USB488), 55-pin connector (J1)
• Acquisition Modes: Continuous with simple triggering, burst for simultaneous analog simulation, polling (multimeter-like operation)

– Key Features

• Compact, portable module—operates standalone or within modular chassis
• Multiple acquisition modes support continuous monitoring, event-driven capture, and polling workflows
• Arbitrary waveform generation capability on dual analog outputs
• Programmable TTL I/O enables direct instrument control and digital signal integration

– Typical Applications

• Multi-channel analog signal measurement and analysis
• Waveform synthesis and signal generation
• Digital control and event triggering
• Portable test and measurement in field or lab environments
• Data logging with simultaneous acquisition

– Compatibility & Integration

• Operating Systems: Microsoft Windows
• Software: Keysight VEE, MATLAB R2007a, NI LabVIEW, Microsoft Visual Studio, Keysight Measurement Manager, BenchVue (BV0025B included)
• Drivers: IVI-COM drivers included
• Chassis: Compatible with U2781A USB modular chassis; optional U2901A or U2902A terminal blocks simplify signal connections