| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LMC660CMX |  441Kb/12P | CMOS Quad Operational Amplifier |
| LMC660CMX |  873Kb/14P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660CM |  873Kb/ 14P | CMOS Quad Operational Amplifier |
| LMC660CM |  441Kb/ 12P | CMOS Quad Operational Amplifier |
| LMC660CM |  461Kb/ 14P | CMOS Quad Operational Amplifier |
| LMC660CN |  873Kb/ 14P | CMOS Quad Operational Amplifier |
| LMC660CN |  441Kb/ 12P | CMOS Quad Operational Amplifier |
| LMC660CN |  461Kb/ 14P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660AI |  441Kb/ 12P | CMOS Quad Operational Amplifier |
| LMC660AI |  873Kb/ 14P | CMOS Quad Operational Amplifier |
 National Semiconductor ... | LMC660AIM |  873Kb/ 14P | CMOS Quad Operational Amplifier |