Sampling Time Control

  0x0D 8 PAC Write-Protection, Write-Synchronized 0x00  

Sampling Time Control

Bit  7 6 5 4 3 2 1 0  
Access  R/W   R/W R/W R/W R/W R/W R/W  
Reset  0   0 0 0 0 0 0  

Bit 7 – OFFCOMP: Comparator Offset Compensation Enable

Comparator Offset Compensation Enable

Setting this bit enables the offset compensation for each sampling period to ensure low offset and immunity to temperature or voltage drift. ADC sampling time is fixed to 4 ADC Clock cycles when OFFCOMP = 1.

Bits 5:0 – SAMPLEN[5:0]: Sampling Time Length

Sampling Time Length

These bits control the ADC sample time (Ts) in number of ADC Clock Period (CLK_ADC), depending of the prescaler value, thus controlling the ADC input impedance. Sampling time is set according to the equation:


SAMPLEN is only available when OFFCOMP=0.

Note: Refer to the ADC Electrical Characteristics for TS computation.