Linear Technology
Negative Adjustable Regulator
Philips Electronics
Quad voltage comparator
STMicroelectronics
THREE TERMINAL ADJUSTABLE CURRENT SOURCES
HTC Korea
QUAD Operational Amplifiers
3PEAK INC.
36V Low Power Dual/Quad Differential Comparators
Fairchild Semiconductor
Quad voltage comparators for square wave generator, time delay generators, pulse generators and etc
STMicroelectronics
NEGATIVE VOLTAGE REGULATORS THREE-TERMINAL ADJUSTABLE