Legion

High-channel Count Preamplification, Analog-to-digital Conversion, and Acquisition Modules

Specifications

Legion ADC

The LEGION ADC modules were designed for massive parallel data acquisition utilized in photoacoustic, laser-induced ultrasound, and X-ray acoustic real-time imaging applications. The LEGION ADC module offers fully parallel operation for simultaneous data acquisition from all channels without multiplexing in an ultra-compact enclosure connected via USB 3.0. Each unit supports 128- or 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 32 units can be operated in parallel with the use of a synchronization hub (LEGION Hub) leading to an unprecedented 8192 channels. Independent programmable gain control is available for each channel, and analog signals can also be further amplified by a fixed 34 or 40 dB using optional, integrated preamplifiers. The LEGION ADC HD improves the analog bandwidth and sampling of the LEGION ADC and is currently available with 128 data acquisition channels.

Specifications

Legion

ADC
  • 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

Legion

ADC HD
  • 128 channels
  • 6 to 54 dB programmable gain (42-90 dB w/ optional preamplifiers)
  • 30 kHz to 50 MHz analog bandwidth at -6 dB (35 kHz to 61 MHz with optional preamplifiers)
  • 12-bit resolution
  • 80 MSPS sampling rate
  • 50 Ω input impedance (2.2 MΩ w/ optional preamplifiers)
  • Up to 200 Hz trigger/frame rate
  • Up to 8192 points/frame/channel
  • Choice of input connectors for 128-channel probes or arrays

Legion AMP

The LEGION AMP is a standalone, high channel count, compact footprint preamplifier for integration with third party analog-to-digital converters/data acquisition devices. This is the same optional preamplifier used in the Legion ADC. The LEGION AMP boosts detection of small signals by +40 dB while minimizing background noise (high transmit voltages not supported).