Tiger Electronic
QUAD OPERATIONAL AMPLIFIER
Philips Electronics
Low power quad op amps
Fairchild Semiconductor
Quad Operational Amplifier
ON Semiconductor
Single Supply Quad Operational Amplifiers
Intersil
Quad, 1MHz, Operational Amplifiers for Commercial, Industrial, and Military Applications
ON Semiconductor
Single Supply Quad Operational Amplifiers
HTC Korea
QUAD OPERATIONAL AMPLIFIERS
STMicroelectronics
LOW POWER QUAD OPERATIONAL AMPLIFIERS