Original Part
Alternative Part
1. LM2904DT Substitution Conclusion
The LM2904DT can serve as a functionally compatible replacement for the original LP358DR, but it should be noted that it represents a direct performance upgrade with potential differences in power consumption and noise. Key variations include a significantly higher gain-bandwidth product (700 kHz vs. 100 kHz) and slew rate (0.6 V/µs vs. 0.05 V/µs), enabling the LM2904DT to handle higher-frequency and faster-changing signals with superior dynamic response. However, its quiescent current (700 µA total vs. 108 µA) and input bias current (20 nA vs. 2 nA) are notably larger. This may reduce battery life in power-sensitive applications and introduce greater input error when used with high-impedance signal sources. The pinout and supply voltage range (3 V to 30 V) remain fully compatible, making the LM2904DT suitable for applications requiring higher speed and output current capability (40 mA) where power consumption is not a critical constraint.
2. LM358DT Substitution Conclusion
The LM358DT offers a high-performance and high-reliability alternative, particularly suited for automotive or industrial environments. Compared to the original part, it provides a substantially higher gain-bandwidth product (1.1 MHz) and slew rate (0.6 V/µs), delivering improved signal bandwidth and speed. Additionally, it carries AEC‑Q100 automotive qualification, meeting stringent requirements for temperature range, reliability, and quality consistency beyond standard commercial-grade components. Similar to the LM2904DT, however, its quiescent current (700 µA total) and input bias current (20 nA) are significantly higher than those of the original device. This can substantially increase the operating current in ultra‑low‑power designs, necessitating a reevaluation of the system power budget. With full pin‑for‑pin and supply‑voltage compatibility, the LM358DT is a preferred substitute for applications demanding high performance and reliability where power consumption is not a primary concern.
Analysis ID: 9A00-09AE000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com