ARiCORP CRA-100 100MHz COUNT RATE TO ANALOG CONVERTER 10/14 bit Low / High Operation
ARiCORP CRA-100 is a free running counter/timer continuously updating DAC
Item Description
CRA-100 100MHz COUNT RATE TO ANALOG CONVERTER by ARiCORP U.S.A.
The CRA-100 is a free running counter/timer continuously updating a Digital to Analog Converter [DAC] after each time base period. The major difference between the CRA-100 and a conventional rate meter is that while the conventional rate meter’s output reads counts per second [CPS] the CRA-100 outputs an analog signal representing counts per selected time base. Only the one (1) second time base will produce voltage directly corresponding to CPS. This time base will produce the 10 V output for 1024 CPS at the 10 bit range or 16,384 CPS for the 14 bit range. The other time bases will produce an analog output proportional to the input’s count rate.
An overload indicator lights up every time the maximum count is reached to warn the user that the analog output reached it’s limit and the time base needs to be reduced.
- FEATURES
- Simple Operation
- High Pulse Pair Resolution
- High Count Rate
- Rapid Analog Output Update [10µs]
- Short Conversion [dead] Time
- 10 bit Operation for Low Count Rates, 14 bit for High.
- Count Rate Averaging/Selected Time Period
- Simple Computer Interface [via ADC]
| SPECIFICATIONS | |
| Maximum Count Rate | 100 MHz |
| Input Pulses | TTL (at least 5ns wide) |
| Pulse Pair Resolution | 10ns |
| Counter Sizes | 10bit or 14bit (Switch Selectable) |
| Time Base | 10µs, 100µs, 1ms, 10ms, 100ms, 1s |
| Time Base Stability | 100ppm |
| Synchronization | Negative TTL Pulse or GND |
| Analog Output Signal | 0V to +10V low impedance |
| Maximum Output Current | 5mA |
| Output Voltage/1 Count | 10mV/10 bit, 0.61mv/14 bit range |
| Dead Time | 300ns
|
CRA-100 Data sheet in pdf format
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