| Manufacturer | Part Number | Description |
|---|---|---|
STMicroelectronics
| MC33172 | Low power dual bipolar operational amplifiers |
| Unknown Manufacturer | 33172D | MC33172D |
Motorola Semiconductor (now NXP Semiconductors)
| MC33171 | (MC33172/MC33174) Low Power / Single Supply Operational Amplifiers |
| MC33172 | Low Power Operational Amplifiers |