These are genuine DIP8 – CA3080AE OTA Chips, made by Rochester Electronics.
It was thought that the CA3080 was to become obsolete after Intersil announced they would discontinue manufacturing, however Rochester Electronics managed to acquire the remaining ‘wafer’ stock and are re-issuing the chips. These are not ‘New Old Stock’ but recently manufactured, yet they remain true to the specs and performance of the original chips without improvement.
More information on this can be found at these links:
CA3080AE – Datasheet