Original Part
Alternative Part
1. LM2904WHYDT Substitution Conclusion
This device is a viable substitute with certain performance advantages, though the impact of increased power consumption must be evaluated. Key differences include: a higher gain-bandwidth product (1.1 MHz vs. 0.7 MHz) and slew rate (0.6 V/µs vs. 0.3 V/µs), enabling faster signal response and improved capability for handling high-frequency small-signal applications; a wider supply voltage range (3-30V vs. 3-26V), providing better margin in higher-voltage systems; and a lower input offset voltage (2 mV vs. 3 mV), which contributes to enhanced DC accuracy. However, its total quiescent current (700 µA) is significantly higher than that of the original part (500 µA), leading to increased power dissipation that is unfavorable for battery-powered or other low-power applications. Additionally, it carries AEC-Q100 automotive qualification, offering higher reliability, making it particularly suitable for automotive or harsh industrial environments.
2. LM2904AS-13 Substitution Conclusion
This part is generally acceptable as a substitute, provided the increased power dissipation is deemed acceptable. The primary differences are: a wider supply voltage range (3-36V vs. 3-26V), offering stronger supply adaptability and an advantage in high-side applications; and a lower input offset voltage (1 mV vs. 3 mV), which provides superior DC accuracy and benefits precision signal conditioning circuits. Its gain-bandwidth product and slew rate are identical to the original part, so no improvement in dynamic performance is realized. Most critically, its per-channel quiescent current (700 µA) is substantially higher than the original's (500 µA), resulting in approximately a 40% increase in total power dissipation. This may present a direct obstacle for power-sensitive designs such as portable or battery-powered equipment.
Analysis ID: 11A8-322F000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com