• Overview
  • Features
  • Technical Details
  • Application
  • Download


Compact, High Channel Count Data Acquisition Unit with 256 Analog-to-Digital Converters (ADC) and Integrated Preamplifiers

The LEGION DAQ256 is a complete, high channel count data acquisition unit optimized for photoacoustic imaging as the highest priority. The unit offers cost effective multi-channel data acquisition with built-in analog-to-digital converter and preamplifier. Key features include noise reducing variable gain amplifier (patent pending), low power consumption and compact size. Input connectors can be modified per customer request. Up to four units can be operated in parallel to enable 1024 channels.


  • Compact housing and customizable input connectors for easy instrument integration
  • Streaming ADCs for continuous data acquisition (no buffering), faster transmission and up to 50 fps
  • Internal trigger generator allows external device triggering at defined frequencies. Continuous mode sends trigger signal as soon as previous acquisition is complete (highest frame rate)
  • Up to 4 units operating in parallel for a total of 1024-ch
  • Integrated AFE amplifier chips with digitally controlled gain
  • Compact 2 x 20 mm preamps per channel
  • Optical and electrical trigger inputs
  • Open SDK and access to raw RF data
  • Optimized for photoacoustic imaging as the highest priority

Technical Specifications



The main feature of the LEGION series is the very high number of channels included in each product. High Channel Count (HCC) electronics are useful for high level parallel data acquision. PhotoSound’s number one goal is to design and optimize products for the photoacoustic imaging scientific community, however there are a number of applications that can benefit from multi‐channel data acquisition.

Exapmles of applications include but are not limited to:

  • Photoacoustic imaging
  • X-Ray acoustics
  • Other radiation source acoustics
  • 3D tomography
  • 2D imaging
  • Safety testing of manufactured goods