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Hello, I'm trying to use the AD2 pattern generator to create a (digital) sine wave using a value table table. I connected the external trigger to a clock of 10MHz, to create a sine with the frequency of 10/1024 MHz (with 1024 being the size of the table). When I compare the resulting sine wave to a sine wave generated by an FPGA, using a look-up table with the same size and clock, I see that both signals drift apart from each other, even though both of them seem to have the same period. Am I using this tool the wrong way? Is my setting for a trigger wrong somehow?
Hi all, I struggled for a while with unexpected DC outcomes from the datalogger. After research I found a DC temperatuur drift error. I think this affects the oscilloscope and voltmeter tool as well. If you watch the attached picture you see a 2 hour record of a 3,3V DC channel (1) and a zero volt (shorted) channel (2). You see a temperature / voltage drift in the range from -38,75 mV by 22 °C to + 2,4 mV by 43,75 °C. The only point where this drift is zero is after 1 hour. For me this DC drift makes the mV range useless and even in the Volt range i have to wait an hour before i have more or less reliable results. The fact that the Range setting in the settings pull down menu is by default on maximum and does not get saved with the workspace, gives always the maximum error for any certain point in time, I made this record with the 10V range in the settings pull down, if it was on the default maximum it was much worse, both channels are in the 100 mV range. Calibrating the device after one hour makes no difference in the temperature dependency. Perhaps this is only the case with my device but that's why we have a forum isn't it? Now my question, where am I wrong? Thanks in advance, Hans.