1. LM2902DRG3 Substitution Conclusion The LM2902DRG3 shares identical pinout (14-SOIC) and key parameters such as gain bandwidth product (1.2 MHz) and output current (30 mA) with the LM124D, establishing a baseline for substitution. The differences lie in its lower maximum supply voltage (26V vs. 30V) and slightly higher input offset voltage (3 mV vs. 2 mV). These make it unsuitable for applications operating near 30V, and will result in marginally degraded DC accuracy. On the other hand, its higher slew rate (0.5V/µs vs. 0.4V/µs) benefits high‑speed signal response, while the slightly lower supply current (1.4mA vs. 1.5mA per channel) helps reduce power consumption. For applications where the supply voltage does not exceed 26V and input offset error is not critical, the LM2902DRG3 can serve as a viable replacement, provided voltage margins and accuracy requirements are verified.