ikorman
Junior Member level 1
Hi all
I'm working on some simple, yet precise measurement circuits which incorporates instrumentation op amps. As I'm looking for op amps with low noise and voltage offset, I found out that op amps that would suite my need have one drawback: they require dual supply voltage. As I'm mostly working in micro controller environment where I have single supply voltages, I'm curious is there some simple way to generate negative voltage (like single chip solution)? I've heard about things like LMC7660, but I'm not sure how switching will influence op amp circuit in sense of precision and stability.
I now that there are precision, single supply, rail-to-rail op amps, but it is not so easy to find one with certain characteristics.
Thx.
Ivan
I'm working on some simple, yet precise measurement circuits which incorporates instrumentation op amps. As I'm looking for op amps with low noise and voltage offset, I found out that op amps that would suite my need have one drawback: they require dual supply voltage. As I'm mostly working in micro controller environment where I have single supply voltages, I'm curious is there some simple way to generate negative voltage (like single chip solution)? I've heard about things like LMC7660, but I'm not sure how switching will influence op amp circuit in sense of precision and stability.
I now that there are precision, single supply, rail-to-rail op amps, but it is not so easy to find one with certain characteristics.
Thx.
Ivan