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CC3220S-LAUNCHXL: Opamp connection on the Launchpad

Part Number: CC3220S-LAUNCHXL
Other Parts Discussed in Thread: CC3220S, CC3220MOD

Hi,

The opamp follower on the Launchpad is used to drive the ADC input of CC3220S. The input of the Opamp follower is scaled by the resistor divider in order to limit the max voltage to <1.5V. 

Would it work if the resistor divider output is directly connected to the input of the ADC (with some filter capacitor on resistor divider output)? Is there a strong reason to put an opamp follower?

Thanks,

David