Incremental zoom ADCs can be made in CMOS and are showing up in IoT sensing applications where high-resolution and accuracy has to be combined with low-power operation from low-voltage rails. In a nutshell, these use a coarse (~6bit) successive approximation ADC to set, via a DAC, the references of a ΣΔ converter – the latter is ...

This story continues at ISSCC: Incremental zoom ADCs, and others

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