Philips Electronics
Low power quad op amps
STMicroelectronics
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Intersil
Quad, 1MHz, Operational Amplifiers for Commercial, Industrial, and Military Applications
HTC Korea
QUAD OPERATIONAL AMPLIFIERS
Samsung
Quad Low Power OP AMP
Harris Semiconductor
Quad, 1MHz, Operational Amplifiers for Commercial, Industrial, and Military Applications