The analog to digital converters (ADC) used vary between PowerLab models and as a result the conversion method used also varies. The ADC methods used by recent PowerLab models are as follows:
- PowerLab C-Series: Successive Approximation Register (SAR)
- PowerLab 26-Series : Sigma - Delta Modulation
- PowerLab 15-Series : Sigma - Delta Modulation
- PowerLab 35-Series (obsolete): Successive Approximation Register (SAR)
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