Fairchild Semiconductor
Quad voltage comparators for square wave generator, time delay generators, pulse generators and etc
STMicroelectronics
LOW POWER QUAD OPERATIONAL AMPLIFIER
Bay Linear
100mA Low Dropout Voltage Regulator
Philips Electronics
Low power dual voltage comparator
ON Semiconductor
Single Supply Dual Operational Amplifiers
3PEAK INC.
36V Low Power Dual/Quad Differential Comparators
STMicroelectronics
Low power dual voltage comparators
KEXIN Industrial
Dual Differential Comparator