The 250 kHz, 36 channel, simultaneous sampling, ADC card is intended to be used for
SEMGrids and other applications where tens or hundreds of simultaneously sampled channels are
needed. Many other applications like wire scanner readout of Faraday Cup acquisition are
possible. The card is equipped with both VME32 and serial interfaces, so it can be used outside
the VME crate.
The card is organized as 6 ADC units, 6 channels each. The total number of independent
ADCs is therefore 36. The sampling clock for the ADCs can be delivered externally, or generated
inside the card. This enables cascading and synchronization of many cards. The sampling clock
frequency can be adjusted using one of the card registers. The card has three trigger sources – 2
external hardware signals and one controlled by software.

VME ADC production board*

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