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Benchtop Power Supply with 0.05 mV step resolution?
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ninjanation217:
Hi everyone,

I tried to search the forums first, but couldn't find an answer.

I am looking to simulate a sensor for a transmitter I am designing.

I am looking for a benchtop programmable power supply that has a step resolution of 0.05mV or lower. The max voltage out I need is only ~110 mV.

Very little current output is required at most 50mA.

I am not worried about cost (Its for the company I work for).

Thanks,

- James
nctnico:
You need a source measurement unit (SMU)
bdunham7:

--- Quote from: ninjanation217 on February 21, 2023, 12:01:32 am ---I am not worried about cost (Its for the company I work for).

--- End quote ---

Well, in that case...

https://www.tek.com/en/products/keithley/source-measure-units/2400-graphical-series-sourcemeter
chilternview:
Use a bench programmable supply with a 1mV resolution driving an opamp configured for a gain of 1/20 ?
alm:
Unfortunately I don't know of a modern replacement other than a SMU, but the Keithley 230 voltage source would have been perfect for this: a 200 mV range with 50 uV resolution, up to 100 mA output current.

When working professionally and not severely limited by budget, I wouldn't mess with building my own attenuator, but rather buy a device that can directly generate the output you need. I'm not quite sure what else, other than an SMU (which would be overkill), is available.
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