Original Part
Alternative Part
1. LM2904VQDRG4Q1 Substitution Conclusion
In applications where the supply voltage does not exceed 26 V and power consumption is not critical, the LM2904VQDRG4Q1 can serve as a direct replacement. It offers superior bandwidth (700 kHz vs. 500 kHz), slew rate (0.3 V/µs vs. 0.2 V/µs), and input bias current (20 nA vs. 45 nA), along with automotive-grade qualification. However, a key limitation is its maximum supply voltage of 26 V, which is lower than the Original Part’s 32 V. This may raise reliability concerns in circuits operating near the original design’s voltage limit. Additionally, its quiescent current (1 mA) is higher than that of the Original Part (700 µA), which could reduce battery life in power-sensitive applications.
2. LM258DRG3 Substitution Conclusion
The LM258DRG3 is a closer substitute. It retains the same performance advantages as the LM2904 (bandwidth, slew rate, input bias current) while restoring the maximum supply voltage to 32 V, matching the Original Part. It also provides stronger output drive capability (40 mA vs. 20 mA). The primary difference is its quiescent current (1 mA), which remains higher than the Original Part’s. Direct replacement will therefore increase overall system power consumption; thermal management and power supply capacity should be evaluated in high-temperature or tight power-budget designs. Aside from this, the electrical compatibility is good.
Analysis ID: 054C-D9A3000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com