Burr-Brown OPA640U Wideband Voltage Feedback Operational Amplifier

NEC UPC253A Programmable Operational Amplifier IC

Quad Operational Amplifier IC UPC824C-A

NEC High-Performance Dual Operational Amplifier IC uPC4557C (C4557C)

NEC High-Performance Quad Operational Amplifier IC uPC3403C (C3403C)

Hitachi Dual Operational Amplifier IC HA17358F-EL (Set of 5)

Burr-Brown OPA37GP Single Operational Amplifier (1 Channel)

National Semiconductor Operational Amplifier IC LM709CN (Set of 5)