HA-2840/883 July 1994 Very High Slew Rate, Wideba.
HA-2840883 - Very High Slew Rate/ Wideband Operational Amplifier
HA1-2840883 - Very High Slew Rate/ Wideband Operational Amplifier
HA7-2840883 - Very High Slew Rate/ Wideband Operational Amplifier