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TMS320F280040-Q1: ADC channel data is fluctuating with fixed input DC volt.

Part Number: TMS320F280040-Q1

Hello,

I have connected three signals on ADCA
1. 5volt DC
2. 15volt DC
3. V_SENSE range(0-2V)
Out of above I am able to read 5V and 15V correctly.
However I am not able to read V_SENSE signal it is fluctuating(even if given input signal is constant i.e, 212mV).
V_SENSE connected to channel A10.
Configuration:

Interrupt setting:

ISR:

ADC channel read:


I am triggering ADC channel after every 10ms in main.
Please guide or add if I missed something in order to resolve the issue.