Fairchild Semiconductor
Quad Operational Amplifier
Harris Semiconductor
Quad, 1MHz, Operational Amplifiers for Commercial, Industrial, and Military Applications
STMicroelectronics
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Tiger Electronic
LOW POWER DUAL VOLTAGE COMPARATORS
Motorola => Freescale
QUAD DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS
Fairchild Semiconductor
Quad Operational Amplifier