The Keysight U2541A is a USB modular data acquisition device that captures analog, digital, and counter signals simultaneously across multiple channels at 250 kSa/s with 16-bit resolution. It functions as a standalone unit or integrates into the U2781A USB modular chassis for expanded system configurations. Built on high-speed USB 2.0 connectivity, it delivers precise time-correlated measurements essential for transient analysis, phase-sensitive measurements, and closed-loop control applications.
– Technical Specifications
• Sampling rate: 250 kSa/s per channel
• Analog input resolution: 16-bit
• Analog input channels: 4 (16 single-ended or 8 differential)
• Analog output channels: 2 at 1 MSa/s update rate
• Digital I/O: 24-bit programmable TTL channels
• Digital counters: 2 general-purpose channels
• Input ranges: Programmable
• Triggering: Multiple modes supported
• Interface: USB 2.0 (High-speed), USBTMC-USB488 standard
• Dimensions: 120 mm × 182 mm × 44 mm
• Weight: Approximately 600 g
• Operating temperature: 0°C to +50°C
• Storage temperature: -20°C to +70°C
• Power: External adapter
– Key Features
• Dedicated ADC per analog input channel enables true simultaneous sampling
• Programmable input ranges accommodate diverse signal levels
• Analog outputs generate predefined or arbitrary waveforms for stimulus and feedback loops
• 24-bit digital I/O supports direct control of switches, relays, and solenoids
• Burst mode capability simulates simultaneous acquisition scenarios
• Compact form factor with modular architecture
– Typical Applications
• Transient signal capture and analysis
• Phase-sensitive and time-correlated measurements
• Closed-loop feedback and control systems
• Multi-channel stimulus-response testing
– Compatibility & Integration
The U2541A operates on Microsoft Windows platforms and integrates with Keysight VEE, MATLAB R2007a, NI LabVIEW, and Microsoft Visual Studio. It includes BenchVue software (BV0025B license) and supports Keysight Measurement Manager. Standalone deployment or chassis-based operation via U2781A provides system flexibility.
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