Azerzen
Newbie level 1
Hi,
I am currently trying to design a transimpedance with multigain stage using analog switches.
The board must be able to perform measurement between 6mA to 6nA with a bandwidth up to 20MHz. I know that it's impossible to have 20MHz on the 5 gain but at least on the 10^3/10^4/10^5.
The main problem is that the parasitic capacitance Cds of the switch decreases a lot the overall bandwitdh.
Do anybody have an idea about how design such a project?
Best Regards,
Azerzen
I am currently trying to design a transimpedance with multigain stage using analog switches.
The board must be able to perform measurement between 6mA to 6nA with a bandwidth up to 20MHz. I know that it's impossible to have 20MHz on the 5 gain but at least on the 10^3/10^4/10^5.
The main problem is that the parasitic capacitance Cds of the switch decreases a lot the overall bandwitdh.
Do anybody have an idea about how design such a project?
Best Regards,
Azerzen