help for the choice of the DA！！

The signal is composed of a series of actual pulse signals with different amplitudes. The envelope looks like a sinusoidal wave. The width of the pulse is between 500nS-20uS and the repetition frequency is controllable between 1 and 10KHz. A total of 8 such signals are required. Six of them require synchronization (the delay time between any two channels is no more than 20ns).

Hi,

Can you provide a picture of the waveform please?

You may also want to post your question in EZ for Chinese customers.

Cheers,

Ivan

Hi,

Do you really intend to create pulses going from 2V to a certain value, then back to 2V?

What is the application of this circuit?

You may consider using AD5676R which has 8 channels and can output 0 to 5V using a gain of 2.

However, the fastest update period is around 870nS, and on top of that, you should also consider the slew rate for big voltage steps.

Cheers,
Ivan

Hi,

Thank you for your reply. First, I'm very sure I need to creat pulses going from 2V to a certain value, then back to 2V. Second, the fastest update period of AD5676R is around 870nS and I think it doesn't satisfy 500ns's  width of the  pulse .

If I use AD9784 and a amplifier,what do you think? Can you help me choose a amplifier?