I'm looking for an 100 kHz or faster analog to digital converter with
very low DNL ( much lower than 0.1 lsb or 10%) to be used for pulse
height MCA analysis by creating a histogram of digitized count
values. Standard PCI interface cards have DNL of 0.2 lsb which
produces noisy histograms when
Application is time correlated single photon counting to measure
nanosecond fluorescent lifetimes. A laser pulse generates a start
pulse. The first photon emitted from the sample generates a stop
pulse. The time difference is converted to a voltage pulse (0 to
+10V), 2 usec duration (I could
Its output voltage may drop from around 4 volts when supplying zero
current to 2 or 3 volts when supplying just a few milliamps. If
overloaded, it can be damaged in a way that it now only outputs say 2
or 3 volts when supplying zero current.
On Thu, 18 Mar 2004 17:41:21 -0600 (CST), Ken S [EMAIL
I don't believe though that the other event will actually execute
until the first one completely finishes. Even if you use a sequence
to call the other event. The other event's timecode will indicate
when it was called or placed in the queue to be executed. Note this
behavior is different than
Are there any PCI bus interface cards available that employ Wilkinson
type ADCs for low DNL ? I'm relating a histogram of the acquired adc
binary output code from tens of thousand of measurements to a physical
parameter. Performing this on a test triangle wave that spans the
entire input range
