DroneGuru

Hello, I am trying to acquire a 5Mhz Sine on channel 1, but something weird happen : I've got this weird looking shape at the beginning, which is when I zoom in, my 5Mhz sine but like "boosted" to +25V / -25V ( So 50Vpp ) , and after a few time go back to the normal Vpp value (2Vpp) : I didn't changed anything Hardware/Software that change the Vpp during acquisition. And of course, if I go back a little bit on the Sample Rate, this thing disappear, and the "Lost samples" message disappear as well. But what i'm looking for is why does the ADP make the signal look like its amplified like this for a few time and then go back to normal. Thanks by advance for your answer, Best regards, Hugo

Hello, We're trying to understand where does the lost and corrupted data flags come from during acquizition. On this webpage https://digilent.com/reference/software/waveforms/waveforms-sdk/reference-manual, we can find : "The device recording buffer" : but according to this diagram, there is 2 buffers ; The FPGA buffer, and the DDRam. So can you tell me which buffer you're talking about when you refer to "the device recording buffer" please ? Thank you by advance, Best regards. Hugo

Hello, Thanks a lot for your reply ! The noise you have is pretty much what we measured, but we need to have a 20 Mhz sampling rate for our project. Concerning the internal Buck-boost converter etc, is it possible to have a global Schematic of the AD2 & the AD Pro ? We purchased both of them and we're trying to know where the noise come from and having multiple parts of an unknown schematic isn't quite practical. This will help us a lot for our university project ! Thanks by advance, Hugo

Hello, I'm trying to measure the internal noise of the AD2, to get an idea of the "real" effective number of bits. When I put the CH1 to ground, I got something like this : I have 2 questions : - What is the light orange shape around the signal, and how can I delete it ? - When powering the AD2 with External Power Supply, when dropping the voltage, the current consumption increase. That's typically a DC/DC switching power supply behavior. So is there by any chance a DC/DC switching power supply inside the AD2 to regulate the External power source ? Thanks by advance for your support. Best regards, Hugo