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Specification of A/D converter

I have received an A/D converter spec that says: bandwidth > 5KHz, sampling rate 2000Samples/second, resolution = 16bits, voltage 0 to 10VDc.

Just want to get an opinion on this requirement. why the bandwidth is especified? In my opinion, For and A/D converter the bandwidth doesn't need to be especified as this value is  already known that for most of A/D converters the input bandwidth is in the order of 50Mz.

I also know that the voltage sensor has a bandwidth of 10kHz while below the typical A/D input bandwidth.

Any comments?