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Friday, May 24, 2013

Band gap 2.5V voltage reference notes LM385B-2.5

























After trying the MCP 4.1V voltage reference, I thought I would also try the 2.5V.  But then I found what I bought from TaoBao is not the same sort of 3 terminals, but a 2 terminal thing called band gap voltage reference.  I have been using Zener diode all these years but never heard about band gap reference.  I googled the datasheet and found it very good, because the current range is very very wide, from 10 uA to20mA.

So I will try to use 1mA and see what happens.

.END


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