I want to use AD5422 to export sinwave and change its amplitude like P1.
But I find that the DAC output is like P2.
Can you help me to solve this issue? thanks.
Let me explain more information.
When I setup AD5422 voltage output a streaming sig-wave from 1.2Vp-p to 3.5Vp-p, which showed an overshoot 400mV at first transition, and an undershoot happened at first transition from 3Vp-p to 1Vp-p too. please refer to attach of capture file.
Is any way to improve this issue? Or it's specification limitation at D-A Glitch?
A few questions:
Can you share a schematic?
What is the range?
What is the load?
What are the codes you are writing to the DAC register?
please refer to attach of schematic, The AD5422's Vout to driver a transformer.
AD5422 Voutput range setting +-10V, and power on initial register setting is:
x560001 -> x551000 -> x551013 -> x551003 -> x5510E3.
Do you have any update?
What load value are you driving?
The AD5422 Voltage output to driver a transformer, please refer to schematic.thanks.
Based on your command sequence above you are changing from the 0-5V Range to the ±10V range without disabling the voltage outout. When you change ranges a glitch may occur and we recommend you disable the output before changing the output voltage range (internal switched are toggled during the changing of voltage ranges). See figure 69 of the datasheet for recommended flow.
Can you keep your range constant and change you input data codes to obtain the necessary amplitude?
Thanks for your reply.
We kept range constant +/-10V and change input data codes to obtain the necessary amplitude, but still can't solved this issue, thanks.
Can you share more details?
What data are you writing to the part and in what sequence?, are you seeing the same glitch as before, do you have any scope plots?
Retrieving data ...