44.4.6 Analog-to-Digital Converter (ADC) Conversion Timing Specifications

Table 44-12. 
Standard Operating Conditions (unless otherwise stated)
Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
AD20 TAD ADC Clock Period 0.5 — 9 μs Using FOSC as the ADC clock source ADOCS = 0
— 2 — μs Using ADCRC as the ADC clock source ADOCS = 1
AD21 TCNV Conversion Time — 14 TAD+2TCY — — Using FOSC as the ADC clock source ADOCS = 0
— 16 TAD+2TCY — — Using ADCRC as the ADC clock source ADOCS = 1
AD22 THCD Sample-and-Hold Capacitor Disconnect Time — 2 TAD+1TCY — — Using FOSC as the ADC clock source ADOCS = 0
— 3 TAD+2TCY — — Using ADCRC as the ADC clock source ADOCS = 1

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.
Figure 44-9. ADC Conversion Timing (ADC Clock FOSC-Based)
Figure 44-10. ADC Conversion Timing (ADC Clock from ADCRC)
Note:
  1. If the ADC clock source is selected as ADCRC, a time of TCY is added before the ADC clock starts. This allows the SLEEP instruction to be executed.