Original Part
Alternative Part
1. TL082CMX/NOPB Substitution Conclusion
Direct substitution is not feasible. Key discrepancies include: its fixed supply voltage of 36V significantly exceeds the original part’s range of 10–30V, making proper operation unlikely under the original supply scheme. Moreover, its quiescent current (3.6 mA) is more than 2.5 times that of the original (1.4 mA), which would noticeably increase system power consumption and thermal dissipation. Additionally, both input bias current (50 pA) and input offset voltage (5 mV) are inferior to the original specifications (30 pA, 2 mV), potentially degrading performance in high‑precision, low‑noise applications. Substitution is not recommended unless the system has ample power supply and thermal headroom and can tolerate reduced accuracy.
2. TL082ID Substitution Conclusion
Direct substitution is generally viable, with certain performance advantages. Differences include: a slightly higher gain‑bandwidth product (4 MHz vs. 3 MHz), offering marginally improved high‑frequency small‑signal response; and a significantly higher output current capability (40 mA vs. 10 mA), enabling heavier load driving. Critical parameters such as supply range (10–30 V) and quiescent current (1.4 mA) match the original exactly, ensuring power compatibility and unchanged power dissipation. Although the input offset voltage (3 mV) is slightly higher than the original (2 mV), it remains within the typical range for JFET op‑amps and should not materially affect most general‑purpose amplification circuits. For non‑critical precision applications, the TL082ID represents a functionally equivalent or superior alternative.
Analysis ID: 55A6-3AF6000
Based on part parameters and for reference only. Not to be used for procurement or production.
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