Thank you for your reply.
I am using the AD5449 with the circuit like Figure 38 in the datasheet
I have tried the Fast Transient Test(IEC61000-4-4) to the substrate.
In the test, the noise was impressed to the AC100V line of the substrate.
I have a question about AD5449.When we used AD5449 as Single-Supply Voltage-Switching Mode, VREFx output voltage was 3.88V max with VDD=5V、VIN（IOUT1x、RFBx）=5V.Is it impossible taht VREFA outputs 5V ?
The datasheet says "In this type of application…
I moved this question about the AD5449 to the Precision DACs community. Someone here should be able to assist you.
EngineerZone Community Manager
Hi Ivan -san,
AD5549 is typo, sorry!
AD5449 is correct.
Dual 12-Bit, High Bandwidth Multiplying DAC with Serial Interface
I'm looking for a driver as mentioned above. Has anyone got anything for this or a good place to start?
thanks in advance,