The Keysight U2356A is a high-density USB modular data acquisition device that operates as a standalone unit or integrates into the U2781A chassis for expanded capability up to 384 channels. Built around 16-bit analog input resolution with 64 single-ended or 32 differential channels sampling at 500 kSa/s, the U2356A delivers simultaneous multifunction measurement across analog, digital, and counter domains. Two 12-bit analog outputs at 1 MSa/s update rate support arbitrary and predefined waveform generation. Twenty-four programmable TTL digital I/O channels enable closed-loop control of external switches, relays, and solenoids, while two general-purpose counter channels round out the measurement suite. The device communicates via High-Speed USB 2.0 with USBTMC-USB488 protocol compliance.
– Technical Specifications
Analog Input
• Resolution: 16-bit
• Channels: 64 single-ended or 32 differential
• Sampling rate: Up to 500 kSa/s
• Input ranges: ±10 V, ±5 V (bipolar)
Analog Output
• Channels: 2
• Resolution: 12-bit
• Update rate: 1 MSa/s
• Waveform support: Predefined and arbitrary
Digital I/O & Counters
• TTL channels: 24-bit programmable
• Counter channels: 2 general purpose
Interface & Connectivity
• Primary: High-Speed USB 2.0 with USBTMC-USB488 compliance
• Operating system: Microsoft Windows
– Key Features
• Standalone or modular operation within U2781A chassis infrastructure
• Dual functional modes: digital multimeter (polling) and simple oscilloscope (continuous with triggering)
• Burst mode for simulated simultaneous acquisition
• BenchVue software license (BV0025B) included; supports Keysight VEE, MATLAB R2007a and later, NI LabVIEW, and Microsoft Visual Studio
• Legacy data logging via Agilent Measurement Manager (AMM)
• WEEE Directive (2002/96/EC) compliant
– Typical Applications
Design validation, manufacturing test, physical measurements, and closed-loop feedback stimulus applications in research and engineering environments.
– Compatibility & Integration
Scalable to 384 total channels through U2781A modular chassis integration. Supports industry-standard software development environments for custom measurement automation.
End of Life Notice: Discontinued June 1, 2024. Five-year post-discontinuation support available.
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