Generate a delayed pulse with analog trigger

[cooler]

I want to generate a pulse with counter when the gate of counter receives some voltage value which is generated by analog output chanel,is this possible?
I am using PCI-6713
Thanks!!

[Stu 708]

The short answer is yes. however, the gate input to the counter time is digital and has a threshold level that is not adjustable. Also, if the slew rate of the analog output channel is too slow, it may cause unexpected operation of the counter timer. It would be better to use a threshold circuit on the front end of the counter timer to get around these problems.
Stu

[tnewton]

The digital counter inputs are TTL level, so the high level (triggered) will be about 2.5 volts. I wouldn't suggest doing this, however, without an interface to the counter input from your signal.
A good choice would be to use a comparator. Put a reference voltage you want to switch at on the (-)input (you can use another DAC output as the reference to make it fully adjustable at any time), and the output signal you want to trigger from on the (+)input. The output of the comparator will be one of two states, equal to the power supply voltages (+/-12V usually). You can then take that output to another buffer stage- there are many xxx-to-TTL buffer ICs available.