Good Day,
How can I use the internal bandgap reference of a lm317 as an input for a comparator using the least current possible?
Currently I am using the voltage regulator configuration of the lm317 to provide 1.4v at out as seen in the attached image but this requires a load resistor which draws a significant amount of current (~1ma) for stability.
I found one post that said to ground the adjust terminal and take the reference at out but this gives me a voltage of VCC - .7
Thanks
How can I use the internal bandgap reference of a lm317 as an input for a comparator using the least current possible?
Currently I am using the voltage regulator configuration of the lm317 to provide 1.4v at out as seen in the attached image but this requires a load resistor which draws a significant amount of current (~1ma) for stability.
I found one post that said to ground the adjust terminal and take the reference at out but this gives me a voltage of VCC - .7
Thanks
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