Product:

Block Average (Optional)

The Block Average Module improves the fidelity of noisy repetitive signals. Multiple repetitive acquisitions with very small dead-time are accumulated and averaged. Random noise is reduced by the averaging process improving the visibility of the repetitive signal.

Ring buffer mode

The ring buffer mode is the standard mode of all acquisition boards. Data is written in a ring memory of the board until a trigger event is detected. After the event the posttrigger values are recorded. Because of this continuously recording into a ring buffer there are also samples prior to the trigger event visible: Pretrigger = Memsize - Posttrigger.

FIFO mode

The FIFO mode is designed for continuous data transfer between measurement board and PC memory or hard disk. The read (acquisition) transfer rate reached depends on the motherboard and can be up to 12.8 GByte/s on a PCI Express x16 Gen3 slot with a TPD of 512. The control of the data stream is done automatically by the driver on interrupt request. The complete installed on-board memory is used for buffer data, making the continuous streaming extremely reliable.

Digital Pulse Generator Option (Optional)

The digital pulse generator option adds four internal independent pulse generators with programmable duty cycle, output frequency, delay and number of loops. These pulse generators can be triggered by software, hardware trigger or can trigger each other allowing to form complex pulse schemes to drive external equipment or experiments. The pulse generators can be outputted on the existing multi-XIO lines or can be used to trigger the instrument internally. Time resolution of the pulse generator depends on the cards type and the selected sampling rate and can be found in the technical data section.

8 Bit Mode

The digitizer allow to optionally reduce the resolution of the A/D samples from their native resolution down to 8 bit resolution, such that each sample will only occupy one byte in memory instead of the standard two bytes required. This does not only allow to store douple the amount of samples in the on-board memory, but also reduces the required bandwidth over the PCIe bus by half and also to the storage
devices, such as SSD or HDD. Using this mode much higer streaing speeds are reachable.

Star-Hub (Optional)

The star-hub is an additional module allowing the phase stable synchronization of up to 8 boards in one system. Independent of the number of boards there is no phase delay between all channels. The star-hub distributes trigger and clock information between all boards. As a result all connected boards are running with the same clock and the same trigger. All trigger sources can be combined with OR allowing all channels of all cards to be trigger source at the same time. The star-hub is available as either piggy-back version (extending the width of the card) or as extension version (extending the length of the card to full length).

12 Bit Packed Mode

The digitizer allows to use a 12-bit packed mode where two 12-bit samples are stored in three bytes. This reduces needed data bandwidth while fully containing the full ADC resolution of 12-bit. Memory usage is reduced by 25% as well as data transfer bandwidth, allowing to continuosuly stream data faster.