How to do measuring? Help me Im a newbie

[yen]

Measure question

Dear all,
I am doing a current d/a.How do I do for my PCB?
I don't know how to measure?Which cicuits do I put on my PCB?
Which instruments do I need?Please tell me detail.
I am beginner. If you have some documents or information,
please tell me.
Thanks.

 

[throwaway18]

Measure question

Describe what you want to do in more detail.

What range of voltage and current do you need from your DAC? How many bits? How fast?

 

[yen]

Re: Measure question

Describe what you want to do in more detail.

What range of voltage and current do you need from your DAC? How many bits? How fast?

My 12 bit current dac's clock is 500MHz.
My digital power is 1.8V and analog power is 3.3V.
My outputs must connet to 50 ohm resistors.

 

[throwaway18]

Measure question

Describe what you want to do in more detail.

What do you mean by "current d/a"?
Do you want a deivce that proces a current proportional to a digital value rarther than a normal DAC which produces a voltage?

What sort of digital interface is the data coming from?

 

[vicky]

Re: Measure question

hello
i thionk that u want to convert digital to analog conversion
firstdesgin your spec. for the circuit
then its rating
i mean current voltages and etc.
than after doing it u rin position to do something more