Hi folks,
I have a mV amplifier set for a gain of 10, it works very well, also I have a µV amplifier set for a gain of 100, this is sensitive to thermocouples etc. It occurred to me that if the 100 gain was reduced to 10 and the output fed to a second op-amp also configured to a gain of ten the total gain would be 100. The pointer to similar threads indicates that this is possible, but would this amplifier be as insensitive as the 10 gain one? Would it be possible to power the second op-amp from the same regulators as the first? Any comments would be appreciated.
I have a mV amplifier set for a gain of 10, it works very well, also I have a µV amplifier set for a gain of 100, this is sensitive to thermocouples etc. It occurred to me that if the 100 gain was reduced to 10 and the output fed to a second op-amp also configured to a gain of ten the total gain would be 100. The pointer to similar threads indicates that this is possible, but would this amplifier be as insensitive as the 10 gain one? Would it be possible to power the second op-amp from the same regulators as the first? Any comments would be appreciated.