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S32k14x datasheet ADC needs RS<5K,  and no RF and RL values

Question asked by Jacky Tan Employee on Mar 26, 2020
Latest reply on Mar 27, 2020 by Lukas Zadrapa

Foryou used R235 (560k)+ R213(56k) resistors to detect input Battery voltage by ADC, because their infotainment produces need total current <100uA in low power mode as OEM required , the battery voltage normal range is 9-16V. this battery detected circuit can pass their low and high temperature test. but S32k14x datasheet needs RS<5K, and no RF and RL values. Foryou needs to know if this circuit has risk , and need to check if it will impact ADC convert accuracy and range.

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