REF6241: Voltage References for more than one adc

Part Number:REF6241

I am  going to use   REF6241  as voltage reference  .   but  there is  4 ADC(SAR  adc  ) in my design   and i don't want to use 4 separate vref

how can I handle it?

what is  best suited op amp for  buffering  it  in this condition?

thanks