The Keysight U2355A is a 64-channel USB modular data acquisition device delivering 250 kSa/s analog input sampling with 16-bit resolution and 400 kHz bandwidth. This single-unit solution provides simultaneous acquisition across 64 single-ended or 32 differential channels, plus 2-channel 12-bit analog output at 1 MSa/s, 24-bit programmable digital I/O, and 2 general-purpose counter channels—all accessible through USB 2.0 with 8M points of onboard memory.
Technical Specifications
Analog Input
• 64 single-ended or 32 differential multiplex channels
• 16-bit resolution
• 250 kSa/s maximum sampling rate
• 400 kHz bandwidth
• ±12 V maximum input voltage
• 10 µA maximum input current
Analog Output
• 2 channels
• 12-bit resolution
• 1 MSa/s update rate
• 0–10 V and ±10 V output ranges
• 5 mA maximum output current per channel
• Arbitrary waveform generation (sinusoidal, square, triangle, sawtooth, noise)
Digital I/O & Counters
• 24-bit programmable TTL channels
• 32 digital input channels
• 2 general-purpose counter channels
Connectivity & Memory
• USB 2.0 interface with USBTMC-USB488 compliance
• 68-pin VHDCI connectors
• 8M-point onboard memory
• +12 VDC power input
Physical
• 182.4 mm × 120 mm × 44 mm
• 565 g
– Key Features
• High-channel-density analog input with 16-bit precision
• Dual analog output with arbitrary waveform capability
• Flexible module architecture for standalone or chassis-based operation
• Integration with U2781A USB modular instrument chassis for advanced triggering and synchronization
• SCPI and IVI-COM driver support
– Typical Applications
• Automated test systems and data logging
• Multi-channel signal acquisition and monitoring
• Waveform generation and signal stimulus applications
• Industrial process monitoring
– Compatibility & Integration
Operates on Windows platforms. Compatible with Keysight VEE, MATLAB R2007a, NI LabVIEW, and Microsoft Visual Studio. Includes Keysight BenchVue software license (BV0025B).
