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Guidetechnology GT621 i/o module time interval analyzer
Guide Technology GT621 I/O Module time interval analyzer
This GT621 appears in good used condition. This card is the older version of Guide Technology's 600 series time interval analyzers. The card is actually two pieces, a Guide Technology GT601 mothercard, and a Guide Technology GT621 daughtercard. All traces, pins, connectors, and chips look fine. There is one modification on the back of the card - visible in the 9th picture down - where a wire was soldered to the mothercard. All BNC ports are in good condition and readily accept connectors.
Here is the only info I could find on this series of time interval analyzer cards. It is for the newest version, the GT658.
GuideTech's GT 658 PCI is an ultra-fast, high resolution, DC - 400 MHz Time Interval Analyzer (TIA), ideal for most PC-based lab bench (timing) test applications. What makes the GT 658 superior to traditional counters is analogous to the difference between volt meters & digital scopes. While both measure voltage, the scope provides much more information about the dynamics of the signal. This is because our patented TIA substantially increases measurement speed, and the measurements are displayed as a function of time. All of these features, along with the benefit of 'continuous time correlation to a common reference between all measurement time stamps,' enable our TIAs to make measurements that weren't previously possible with traditional counters.
Resolution, Accuracy, and Measurement Rate:
* Measurement table in figure 1 (see back) represents each channel. Therefore, both channels may operate alone or simultaneously.
* Multiple boards can be calibrated for an absolute accuracy of +1nS between channels on separate boards
* Memory can be read while measurements are taken, enabling continuous operation.
* Full year, full service warranty for upgrades and/or repairs as needed.
Time Interval Accuracy (Channel A to B)
*Specifications are subject to change without notice.
* Frequency range: DC - 400 MHz
* Minimum pulse width: 1.5 nS
* 50 m V rms (DC - 100 MHz)
* 100 m V rms (100 MHz - 200 MHz)
* 150 m V rms (200 MHz - 400 MHz)
* Input impedence: 1K / 10 pF, or 50 software programmable
* Threshold setting (each channel):
* Absolute accuracy: 35 mV or 1% of setting
* Automatic threshold setting is available
EXTERNAL CLOCK AND ARM INPUTS:
* External clock: 10 MHz (+/- 100 Hz)
* External arm: DC - 80 MHz
* Input impedence: 1K (user may install additional resistor)
* Automatic threshold setting available
* Temperature compensated crystal oscillator:
* Temp: 0 - 45 C +/- 10ppm
Keep in mind that the above specifications are for the NEWEST version of this card, and may not be the same as the card for sale.
