Original Part
Alternative Part
1. LM2904DR Substitution Conclusion
The LM2904DR can directly replace the LM358D in the vast majority of applications. Their key performance parameters—including gain bandwidth product, slew rate, input bias current, offset voltage, and output current—are identical, and they share pin-to-pin compatible packages. The primary difference lies in the maximum supply voltage: 26V for the LM2904DR versus 30V for the LM358D. In systems where the power supply design has significant margin (e.g., using a 24V or lower standard supply), the substitution is transparent and feasible. However, for existing designs operating at voltages near or above 26V, a direct replacement may cause device malfunction or damage, necessitating a re-evaluation of the power supply design.
2. LM2904DT Substitution Conclusion
The LM2904DT is a qualified substitute for the LM358D, offering some performance enhancements. Both devices are package and pin-compatible, with identical supply voltage ranges (3-30V) and gain bandwidth product. The key differences are as follows: First, its slew rate (0.6V/µs) is double that of the LM358D (0.3V/µs), giving the LM2904DT superior response to fast-changing signals and effectively reducing distortion at higher large-signal frequencies. Second, its input offset voltage (2mV) is slightly better than the LM358D's (3mV), contributing to improved DC accuracy. Third, the quiescent current is specified as 700µA (not specified whether per channel), whereas the LM358D is specified at 500µA per channel, indicating potentially different overall power consumption characteristics that should be considered in low-power applications. Overall, the LM2904DT provides an equivalent or superior alternative.
Analysis ID: 3328-5B8E000
Based on part parameters and for reference only. Not to be used for procurement or production.
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