The Keysight U2331A is a 64-channel USB modular multifunction data acquisition device delivering flexible analog, digital, and counter measurement capabilities in a compact form factor. Operating standalone via USB 2.0 or integrated into a U2781A chassis for expanded channel counts, this 12-bit DAQ module serves design validation and manufacturing test environments requiring synchronized multi-channel data logging and real-time monitoring.
Technical Specifications
Analog Input: 64 single-ended or 32 differential channels, 12-bit resolution, up to 3 MSa/s single-channel or 1 MSa/s multichannel sampling.
Analog Output: 2 channels, 12-bit resolution, 1 MSa/s update rate.
Digital I/O: 24 programmable TTL channels.
Counter/Timer: 2 channels, 16-bit functionality.
Input Characteristics: 1.2 MHz bandwidth, ±10 V maximum input, 10 µA maximum input current.
Interface: High-speed USB 2.0 (480 Mbit/s), USBTMC-USB488 compliant.
Operating Temperature: 0 °C to 55 °C.
Physical: 182.4 mm × 120 mm × 44 mm (L × W × H).
– Key Features
• Standalone USB connectivity or modular chassis integration for up to 384 total channels
• Synchronization and triggering capabilities for coordinated multi-module measurement
• Compatible with optional U2901A or U2902A terminal blocks for streamlined connections
• Powered via external adapter
– Typical Applications
• Design validation and prototype characterization
• Manufacturing test and quality assurance data logging
• Multi-channel physical parameter monitoring across automotive, industrial, and research environments
• Real-time sensor data acquisition with integrated signal generation
– Compatibility & Integration
Supports Windows operating systems with IVI-COM, IVI-C (32/64-bit), and IVI.NET (32/64-bit) drivers. Compatible with Keysight VEE Pro, National Instruments LabVIEW, The MathWorks MATLAB, Microsoft Visual Studio .NET (C/C++, Visual Basic 6), and T&M Toolkit. Includes BenchVue software license (BV0025B). Integrates into U2781A modular chassis for distributed measurement systems.
