I need an SMD current buffer (low Zin<=100ohm, high Zout>=1Meg) to drive a 100Kohm electrode supplied by a very low output impedance current DAC(this DAC i cannot access and redesign).
Unfortunately, I couldn't find any in the market. Does anyone have experience with any current buffer IC to recommend? or should I design it from scratch using MOSFETs?
Here you are a simplified diagram of my circuit:
Unfortunately, I couldn't find any in the market. Does anyone have experience with any current buffer IC to recommend? or should I design it from scratch using MOSFETs?
Here you are a simplified diagram of my circuit: