OP470Not Recommended for New Designs
The OP470 is a high-performance monolithic quad operational amplifier with exceptionally low voltage noise, 5nV/(root)Hz at 1kHz Max, offering comparable...
Datasheet OP470 on Analog.com
You are using single supply, -Vs = GND. The OP470 requires 4V headroom from your -Vs which means your minimum input would be 4V in your case. You may want to use split supply in order to accommodate 0V input.
