1. LM2902AQT14-13 Substitution Conclusion Direct substitution is viable, with several advantageous characteristics, though attention must be paid to the bandwidth difference. The LM2902AQT14-13 is fully compatible with the original part in key parameters such as package, channel count, and output current. The differences are as follows: Its gain-bandwidth product (GBWP) is 700 kHz (compared to 1 MHz for the original), resulting in slightly lower usable bandwidth in high-gain or higher-frequency applications. Its input bias current is 20 nA (versus 90 nA for the original), which is significantly lower. This helps reduce signal errors caused by input bias current, a distinct advantage, particularly with high-impedance signal sources. It also features a wider supply voltage range (2V to 36V vs. 3V to 32V), offering greater resilience in lower single-supply or widely fluctuating voltage environments. Furthermore, it is AEC-Q100 automotive-grade qualified, which is a significant additional benefit for automotive or high-reliability applications.