| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM4891 |  733Kb/20P | 1 Watt Audio Power Amplifier |
| LM4891IBP |  733Kb/20P | 1 Watt Audio Power Amplifier |
| LM4891IBPX |  733Kb/20P | 1 Watt Audio Power Amplifier |
| LM4891M |  733Kb/20P | 1 Watt Audio Power Amplifier |
| LM4891MM |  733Kb/20P | 1 Watt Audio Power Amplifier |
 National Semiconductor ... | LM4890 |  1Mb/31P | 1 Watt Audio Power Amplifier |
 National Semiconductor ... | LM4890IBL |  1Mb/31P | 1 Watt Audio Power Amplifier |
| LM4890IBLX |  1Mb/31P | 1 Watt Audio Power Amplifier |
| LM4890IBP |  1Mb/31P | 1 Watt Audio Power Amplifier |
| LM4890IBPX |  1Mb/31P | 1 Watt Audio Power Amplifier |
| LM4890ITL |  1Mb/31P | 1 Watt Audio Power Amplifier |