EFM32TG232 Datasheet, PDF (39/67 Pages) Silicon Laboratories – Output state retention and wake-up from Shutoff Mode

...the world's most energy friendly microcontrollers
Figure 3.28. OPAMP Voltage Noise Spectral Density (Non-Unity Gain)
2015-03-06 - EFM32TG232FXX - d0071_Rev1.40
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