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hi i am using AD591 with ADICUP30129, as mentioned in "https://wiki.analog.com/resources/eval/user-guides/circuits-from-the-lab/cn0510". i have few questions. i am using with icr samsung 18650 3000mah and 3,7 nominal voltage battery. 1. when usin

Category: Datasheet/Specs
Product Number: AD5941

hi i am using AD591 with ADICUP30129, as mentioned in "">wiki.analog.com/.../cn0510". i have few questions. i am using with icr samsung 18650 3000mah and 3,7 nominal voltage battery. 1. when using sensorpal software the dcbias is not going morethan 1200 and ac amplitude more than 600 does this have any significance impact ? what will be the current with this voltages? 2. can i use it while discharging the battery with a load? 3. how can validate the values derived from this product? can i blindly trust the values? if yes then provide me an answer, in the datasheet of the battery used DCIR is around 20mohms. 4. how can i fix my calibration value? is there any equation or tell me with respect to the datasheet DCIR, so that i can use blindly.

  • Hi,

    1. AD5941 can only support 1.2V DC bias and 600mV AC Amplitude. Please refer to AD5940/1 Datasheet to see the part's limitation.

    2. I am not unable to answer this since I am not an expert on battery impedance measurement. I am not sure what's the impact on battery impedance measurement when the battery is discharging.

    3. No, you cannot trust the result blindly. This example circuit and code are meant for evaluation purposes only and the user should validate the performance of the board.

    4. I am not sure I understand this question. Which calibration value are you referring to?

    regards,

    Mark