Original Part
Alternative Part
1. LM248D Substitution Conclusion
The LM248D can serve as a conditional replacement. Its key limitation is a minimum operating voltage of 8V, whereas the MC3303DR2G can operate down to 3V. Consequently, the LM248D is unsuitable for low-voltage systems such as single-supply 5V or 3.3V rails. However, if your application's supply voltage consistently exceeds 8V (e.g., ±5V dual supplies or a single supply above 12V), the LM248D becomes the preferable choice. It offers superior DC accuracy due to lower input bias current (30nA vs. 200nA) and lower input offset voltage (1mV vs. 2mV). Core performance parameters such as quiescent current (2.4mA vs. 2.8mA) and slew rate (0.5V/µs vs. 0.6V/µs) are comparable.
2. LM2902D Substitution Conclusion
The LM2902D is viable as a replacement in specific scenarios. The primary difference is its upper supply voltage limit of 26V, which is lower than the MC3303DR2G's 36V. Therefore, it is not applicable in environments with supplies exceeding 26V (e.g., ±15V dual supplies or a single 30V rail). If your application operates between 3V and 26V (encompassing common 5V, 12V, and 24V systems), the LM2902D is a feasible alternative. Its significant advantage is an extremely low quiescent current (1.4mA vs. 2.8mA), making it beneficial for battery-powered or other low-power applications. It also features a slightly higher gain-bandwidth product (1.2MHz vs. 1MHz). However, its input offset voltage is worse (3mV vs. 2mV); this trade-off must be evaluated in circuits where very high precision is not critical.
Analysis ID: D9B8-4098000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com