| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LME49990MA |  448Kb/16P | Ultra-low Distortion, Ultra-low Noise Operational Amplifier |
 National Semiconductor ... | LME49990MAX |  448Kb/16P | Ultra-low Distortion, Ultra-low Noise Operational Amplifier |
 National Semiconductor ... | LME49990MAX |  448Kb/ 16P | Ultra-low Distortion, Ultra-low Noise Operational Amplifier |
 National Semiconductor ... | LME49990 |  448Kb/ 16P | Ultra-low Distortion, Ultra-low Noise Operational Amplifier |
 National Semiconductor ... | LME49600 |  415Kb/ 20P | High Performance, High Fidelity, High Current Audio Buffer |
| LME49600 |  434Kb/ 20P | High Performance, High Fidelity, High Current Audio Buffer |
 National Semiconductor ... | LME49600TS |  415Kb/ 20P | High Performance, High Fidelity, High Current Audio Buffer |
 National Semiconductor ... | LME49600_0803 |  434Kb/ 20P | High Performance, High Fidelity, High Current Audio Buffer |
 National Semiconductor ... | LME49610 |  468Kb/ 18P | High Performance, High Fidelity, High Current Audio Buffer |