EFM32ZG222 Datasheet, PDF (39/70 Pages) Silicon image – Energy, gas, water and smart metering

...the world's most energy friendly microcontrollers
Figure 3.30. ADC Differential Linearity Error vs Code, Vdd = 3V, Temp = 25°C
1.25V Reference
2.5V Reference
2XVDDVSS Reference
5VDIFF Reference
VDD Reference
2015-03-06 - EFM32ZG222FXX - d0066_Rev1.10
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