0.25 ns Time-to-Digital Converter

Photo of P7887 TDC

Kore Technology now has experience of integrating the FastComtec P7887 TDC into Kore TOF-MS systems for applications where high time resolution is required. We have also successfully interfaced the TDC with the GRAMS AI mass spectral software that we often use as the user interface for our TOF-MS systems. If you are interested in the TDC hardware only, you should deal with ComTec directly. We are providing information about this TDC because we have now built TOF-MS using this TDC and we can offer this TDC (or closely related lower cost products with 0.5 ns or 1 ns resolution) as the counter in our TOF-MS instrumentation.

Features

Fully digital design based on PCI card
250 ps time-resolution
4 GHz max. count rate (burst) - 250 ps pulse pair resolution
Start- and Stop-Input via built-in 4 GHz, ± 1 V falling-edge discriminators, sensitivity: < 10 mV
38 bit dynamic range (32 ns to 68.7s programmable range with 250 ps resolution)
No dead time between time bins, No missed events, No double counting
On-board FIFO for ultra fast data transfers at approx. >11,000,000 stop events/sec to the PC for data storage in list-mode or on-line histogramming.
Operating modes: Continuous (wrap around), stop after sweep and sequential
Two versatile, software configurable Sync-outputs for triggering of external devices
Ultra high sweep repetition rates up to wrap around speed
Optional Tag inputs (8) with 16 ns time resolution
Optional insertion of "Start-of-Sweep" marker into the list-mode (event by event) data stream
Pre-settable 32 bit sweep counter
Programmable acquisition deleay and trigger hold-off after sweep
Up to four P7887 can be operated in one PC
User configurable "GO"-line I/O for experiment synchronization (compatible with other FAST ComTec devices)
8-bit digital I/O port

Further technical information on this and related products is available on the FastComtec website.

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Last updated: 14 September 2005 21:42