Hi Sanket,
So basically 0.5-4.5 V range to 0-5 V range:
If you are able to provide me with the available onboard supply voltage, I may be able to refine the op amp selection. As simulated, OPA391 would work good, unless you have specific requirements.
OPA391 level shift 03092022.TSC
If you have additional questions, please let me know.
Best,
Raymond
Hi Sanket,
With the onboard supply voltage of 24VDC, we have many other options (so the circuit does not require additional LDO). I listed two schematics, both are zero drift type and top one is lower cost approach.
OPA187 level shift 03092022.TSC
TVL2186 Level Shift 03092022.TSC
If you have additional questions, please let us know.
Best,
Raymond
Hi Sanket,
The Vref has to be negative -0.50Vref (this is summing amplifier).
Anyway, I created Vref = -2.5Vdc from TL431 IC. We have many other ref ICs that you may be able to use, see the attached link above. It depends on how stable and accurate that the reference is required over operating temperature per the design requirements.
TVL2186 with -Vref 03092022.TSC
Enclosed is the link per our reference ICs.
If you have additional questions, please let us know.
Best,
Raymond
