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Dec 11 '17 at 20:46 history edited SamGibson CC BY-SA 3.0
Fixed typo & improved title. Split question into paragraphs , to prevent "wall of text" and improve readability.
Dec 11 '17 at 19:30 answer Eugene K timeline score: 0
Dec 11 '17 at 19:14 answer Spehro Pefhany timeline score: 1
Dec 11 '17 at 18:28 history edited Visinet CC BY-SA 3.0
added 180 characters in body
Dec 11 '17 at 17:59 answer Tony Stewart EE75 timeline score: 0
Dec 11 '17 at 17:53 answer AnalogKid timeline score: 0
Dec 11 '17 at 17:47 answer Trevor_G timeline score: 2
Dec 11 '17 at 17:47 comment added glen_geek Assuming that DC Power Supply ground is the same as ADC- ground reference is a common problem. A lot of current may flow between the two, causing a voltage drop (error). A differential amplifier buffer can help.
Dec 11 '17 at 17:47 comment added Tony Stewart EE75 No trev. it's anticipation of fire as we go to LA for a wedding this week. but for fun, recall Wayne & Shuster's parody on Bonanza 70's TV show coming out of the ring of fire eating a hotdog.
Dec 11 '17 at 17:46 comment added Nick Alexeev Please post the datasheet for the ADC (or the datasheet for the microcontroller, if the ADC is in the microcontroller). For an example, a typical 10-bit ADC in a PIC microcontroller works fine with a voltage divider without buffering, as long as the lower resistor in the voltage divider is 2kΩ or less.
Dec 11 '17 at 17:45 comment added Trevor_G @TonyStewart.EEsince'75 you are having one of THOSE days.. I can tell.. must be the snow.
Dec 11 '17 at 17:44 comment added Tony Stewart EE75 Re-think your question into gain and offset specs and decide what the load regulation impedance does to voltage drop on source impedance and decide for yourself. All problems are due to lack of pertinent specs. : resolution, tolerance and signal bandwidth.
Dec 11 '17 at 17:44 review First posts
Dec 11 '17 at 18:23
Dec 11 '17 at 17:42 comment added Trevor_G That depends on your voltage divider...Do you plan on using low value resistors? I'm guessing no...
Dec 11 '17 at 17:40 history asked Visinet CC BY-SA 3.0