Request recommended Voltage out DAC solution supporting +- 25V output range

Hi Se-woong, 

About your customer's specs, how many channels are needed for their application? Is there a voltage resolution requirement? 

I'll be looking more into a solution for this. 

Se-woong said:

PS.  Could they use AD5535B solution to support -25V range?

AD5535B only has unipolar output. It would be possible to use an external amplifier array to make the output cover the +-25V range but that would lead to more external components and bigger pcb size.

Best regards,

Ian

Dear Ian

Thank you for your kind answer.

Below are our customer's reply about your questions.

1. No. of Ch :  24 CH or 32 CH

2. Voltage resolution : 14 bit or 12 bit

3. Would you let me know detailed solution with real ADI component about supporting -25V range if they can use AD5535B?

    They say that  they can use additional components.

    They don't have any PCB size limitation yet.

4.  Would you suggest ADI solution supporting  +25V to -25V  range ?

Please help me ASAP.

Regards

Se-woong

Hi Se-woong, 

You can do:

1) AD5535B (0-50V 32Ch) + offset amplifier (8* ADA4522-4 is a good choice) 
-Something seems wrong with the website and I can't paste images.
Additional >50V supply needed for the AD5535B.

2) 2*AD5679R (0-2.5V/5V 16ch) + Offset and gain amplifier setup (8* AD4522-4 will also work, just a different setup)
The advantage of using AD5679R is that the supplies are simplified, no need for the extra 50V rail that won't even be used. AD5679R additionally has an internal reference built-in for the DAC.

Let me know if these are OK or if you need other options or further help. 

Best regards,

Ian

Dear Ian,

Thank you for your prompt reply.

And could you send me the image fie to me?

My e-mail is "sewoong.park@arrowasia.com".

Regards,

Se-woong