Agilent/Keysight U2353A

The Keysight U2353A is a USB modular multifunction data acquisition device that combines analog input and output, digital I/O, and counter functionality in a compact form factor. It operates standalone or integrates into a Keysight U2781A chassis to scale up to 384 channels, making it suitable for measurement, data logging, and waveform generation across research and industrial environments.

Technical Specifications

• 16 single-ended or 8 differential multiplexed channels


• 16-bit resolution at up to 500 kSa/s per channel


• Voltage ranges: 0–10 V, ±10 V, 0–5 V, ±5 V, 0–2.5 V, ±2.5 V


• Accuracy: ±0.04% of reading + 1.5 mV (10 V range); ±0.08% of reading + 1.5 mV (5 V range); ±0.08% of reading + 1.0 mV (2.5 V range)


• 400 kHz bandwidth; maximum 10 µA input current Analog Output


• 2 channels, 16-bit resolution at 1 MSa/s update rate


• Output ranges: 0–10 V and ±10 V


• 5 mA maximum per channel


• Arbitrary waveform generation including sinusoidal, square, triangle, sawtooth, and noise Digital and Counter Functions


• 24-bit programmable TTL I/O channels


• 2 general-purpose counter channels, 31-bit resolution Memory and Connectivity


• 8M point onboard memory


• USB 2.0 (480 Mbit/s) with USBTMC-USB488 compliance


• 100–240 VAC mains supply

Key Features

• Standalone operation or modular chassis integration


• Plug-and-play USB connectivity with hot-swappable capability


• Self-calibration to maintain offset accuracy


• Optional U2901A or U2902A terminal blocks for simplified field connections


• Compact dimensions: 120 mm × 182.4 mm × 44 mm; 565 g

Typical Applications Multichannel sensor monitoring, signal acquisition and logging, waveform synthesis, automated test systems, and laboratory research requiring flexible analog and digital I/O.

Compatibility & Integration Supported development environments: Keysight VEE, MATLAB R2007a, NI LabVIEW, Microsoft Visual Studio, Agilent Measurement Manager, and Keysight BenchVue. Windows operating systems only.