Hello,
My goal is to get an output current DAC that can generate up to 400mA, very fast and at low power.
Since getting such current out of a DAC is not recommended, I want to use an external high speed high current op-amp to generate the wanted current.
What I have now is:
- A DAC that can generate from 1 to 5mA.
- A 400mA current amplifier.
Does anyone know a good idea to have an output current that can be from 0 to 400mA, by using as "modulating" input the 1-5mA current from the fast DAC?
I am looking for any good ideas and don't hesitate to ask if you have any question.
Thank you,
Meach
My goal is to get an output current DAC that can generate up to 400mA, very fast and at low power.
Since getting such current out of a DAC is not recommended, I want to use an external high speed high current op-amp to generate the wanted current.
What I have now is:
- A DAC that can generate from 1 to 5mA.
- A 400mA current amplifier.
Does anyone know a good idea to have an output current that can be from 0 to 400mA, by using as "modulating" input the 1-5mA current from the fast DAC?
I am looking for any good ideas and don't hesitate to ask if you have any question.
Thank you,
Meach