| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LMC660AIMEP |  891Kb/15P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660AIMX |  441Kb/ 12P | CMOS Quad Operational Amplifier |
| LMC660AIMX |  873Kb/ 14P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660AIM |  461Kb/ 14P | CMOS Quad Operational Amplifier |
| LMC660AIM |  441Kb/ 12P | CMOS Quad Operational Amplifier |
| LMC660AIM |  873Kb/ 14P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660AIN |  461Kb/ 14P | CMOS Quad Operational Amplifier |
| LMC660AIN |  441Kb/ 12P | CMOS Quad Operational Amplifier |
| LMC660AIN |  873Kb/ 14P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660AI |  441Kb/ 12P | CMOS Quad Operational Amplifier |