SEOUL SEMICONDUCTOR
INFRARED LAMP LED
HTC Korea
QUAD OPERATIONAL AMPLIFIERS
Contek Microelectronics
Quad Operatioal Amplifier Pinouts
ON Semiconductor
Single Supply Quad Operational Amplifiers
Motorola => Freescale
Positive Voltage Regulators
Cadeka Microcircuits LLC.
Low Power, 3V to 36V, Single/Dual/Quad Amplifers
Fairchild Semiconductor
Quad Operational Amplifier