Legion ADC

256-Channel Analog-to-Digital Converter

The LEGION ADC unit offers fully parallel operation for simultaneous data acquisition from all channels without multiplexing in an ultra-compact external USB enclosure. Each unit supports 128- and 256-element detectors. Up to four ADC units can be operated in parallel to enable 1024 data acquisition channels. If more channels are desired up to 16 units can be operated in parallel with the use of PhotoSound’s synchronization hub (LEGION Hub) leading to an unprecedented 4096 channels. Incoming analog signals can be amplified on each channel by a fixed 40 dB using optional, integrated preamplifiers. Upon special request, the linear probe is available without housing for the end-user to integrate custom photoacoustic arrays.

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Features
  • Compact, durable and light enclosures with integrated cooling fans
  • Streaming ADCs for continuous data acquisition with no buffering or multiplexing
  • Each analog channel has integrated amplifier with digitally controlled gain
  • Acoustoelectrics
  • Generate trigger output at defined rate or repetition of external trigger input with programmed delay
  • Connect up to four units in parallel and acquire more data at fast data acquisition rates
  • Sync external hardware with data acquisition using electronic or optical IN/OUT ports
  • Standalone control software based on MATLAB, open SDK written in C# and access to raw RF data
Specifications
  • 128/256-channels
  • 9 to 48 dB programmable gain (49-88 dB w/ optional preamplifiers)
  • 12.5 kHz to 25 MHz analog bandwidth (40 kHz to 25 MHz w/ optional preamplifiers)
  • 12-bit resolution
  • 40 MSPS sampling rate
  • 50 Ω input impedance (2.2 MΩ w/ optional preamplifiers)
  • Up to 200 Hz (256-ch) or 400 Hz (128-ch) trigger/frame rate
  • Up to 4096 points/frame/channel
  • Choice of input connectors for 128- or 256-probes or arrays
Applications
Downloads
LEGION ADC HD Datasheet 2024_07_24Download