Original Part
Alternative Part
1. TL082IYDT Substitution Conclusion
The TL082IYDT offers partial compatibility with the AD746JRZ in terms of package and wide supply voltage range (6-36V vs. 9-36V), making it a potential performance-degraded alternative. However, a direct substitution may result in circuit performance falling below specifications. The core differences lie in the TL082IYDT's significantly lower bandwidth (GBW 4MHz) and slew rate (16V/µs) compared to the AD746JRZ (13MHz, 75V/µs). This renders it incapable of handling signals of the same speed, leading to signal distortion in high-frequency or fast-transient applications. Furthermore, its input offset voltage (3mV) is an order of magnitude higher than that of the AD746JRZ (300µV), introducing greater DC error and severely impacting the accuracy of precision amplification or DC-coupled circuits. Its advantages are lower quiescent current and AEC-Q100 automotive qualification. Substitution could be cautiously evaluated only if the original circuit has extremely relaxed requirements for speed and precision, or if automotive-grade compliance is specifically needed.
2. LMV358M Substitution Conclusion
The LMV358M cannot serve as a direct replacement for the AD746JRZ, as the two devices are intended for entirely different application spaces. The most fundamental incompatibility is the supply voltage range: the LMV358M operates from 2.7V to 5.5V, while the AD746JRZ requires a minimum of 9V. A direct swap would likely damage the LMV358M or prevent it from functioning. Secondly, the LMV358M is a CMOS-input, rail-to-rail output op-amp with very low bandwidth (1MHz) and slew rate (1V/µs), making it unsuitable for any high-speed signal processing. Its input bias current (15nA) is orders of magnitude higher than the JFET-input AD746JRZ's (110pA), which would introduce unacceptable error in high-impedance source applications. It is only appropriate for low-voltage, low-speed, micropower battery-operated systems. It represents a new design choice, not a substitute.
Analysis ID: AAC1-A1E6000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com