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Topic: Alternate design (Read 324 times) previous topic - next topic

Re: Alternate design

Reply #15
I sent out two PCBs:
1) The expensive current feedback op-amp (SOIC8), so we have a known-working reference (and I already have the samples)
2) The cheaper voltage feedback op-amp (MSSOP)

The op-amps are pin compatible, but different sizes.

One thing we have not discussed is the new R values needed for the cheaper VFB op-amp. This was also a reason I had two versions made, that way we can tackle the overall project even if there are some difficulties with the opamp replacement.
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