I am able to read and write config register, read cell voltages and status register of LTC6811.However, the cell voltages measured by LTC 6811-1 are not accurate and keep fluctuating.I got around 6.2volt in cell 1 and all the remaining cells as 0 volt.And after executing ADC command immediately for second time I am getting values of around 2 to 4.3 volts in cell 1,2,3,7,8 where cells are connected.Cell (C) pins of LTC6811-1 are shorted if cells are not connected.It seems like it takes some time for voltage reading to become constant but constant reading are 6.2volt in cell 1 and all the remaining cells as 0 volt.what is wrong or has the IC got damaged?Please give some solution.
Can you please check if you are waiting for conversion period after ADCV. Also. can you check is you have shorted the cells in similar manner as in the image (fig 53: datasheet).
Yes I have connected 5 cells as shown in the image.
Also I am using PollADC command to wait for ADC conversion to get over.
Does the order of connecting cells affect LTC6811?
You can replace Cells with a series of 100 Ohm resistors powered externally and do quick check If IC is working properly.
Also, Can you check if you have shorted unused cells directly to next previous C pin not after the RC filters.
Unused cells are shorted directly on the C pins