1. LM2904AS-13 Substitution Conclusion The LM2904AS-13 can serve as a replacement for the original LM2904D, offering certain advantages in electrical performance. Both devices share highly consistent core specifications, such as dual-channel design, 700kHz bandwidth, 0.3V/µs slew rate, and package compatibility. However, key improvements in the LM2904AS-13 include: a reduction in input offset voltage from 3mV to 1mV, which significantly enhances DC accuracy and minimizes signal conditioning error; an extension of the supply voltage range from 26V to 36V, improving suitability for higher-voltage industrial environments; and an increase in quiescent current from 500µA to 700µA per channel. While the higher quiescent current slightly increases power consumption, its impact is generally negligible in most non-battery-critical applications. In scenarios prioritizing precision, wide supply voltage operation, or replacement inventory, the LM2904AS-13 represents a viable upgrade alternative.