A conventional 1-MΩ transimpedance amplifier has at least 130 of output-noise density at room temperature (Figure 1). You can consider the 130 nV as the theoretical noise floor limit of the amplifier ...
Picking a low-noise op amp is easier than ever, yet somehow harder also. How can this be? Harder – Because there are so many devices to choose from and the noise data is not always presented in the ...