AD8682ARZ Substitution Conclusion The AD8682ARZ is a candidate substitute for the TLE2061ID, offering partial technical alignment but with critical differences that necessitate careful evaluation. Also a J-FET input amplifier, the AD8682ARZ provides superior bandwidth (3.5 MHz vs. 2 MHz) and slew rate (9 V/µs vs. 3.4 V/µs), delivering better performance in high-frequency or fast-transient applications. Its lower input offset voltage (350 µV vs. 600 µV) can enhance DC accuracy. However, its output current capability is significantly lower (12 mA vs. 80 mA), limiting its ability to drive heavy loads. Furthermore, its minimum supply voltage is higher (9 V vs. 7 V), which may preclude use in low-voltage scenarios. Its dual-channel (2-circuit vs. 1-circuit) design also wastes resources if only a single op-amp is required. In summary, the AD8682ARZ can be considered a viable substitute in applications that do not demand high output current or low-voltage supply and would benefit from its higher bandwidth and precision, provided load driving capability and supply compatibility are verified. LM358ADR2G Substitution Conclusion The LM358ADR2G is a candidate substitute for the TLE2061ID but exhibits significant differences in core parameters, making it generally unsuitable for direct replacement. The LM358ADR2G is a standard bipolar amplifier, not a J-FET type. It features a very high input bias current (45 nA vs. 4 pA), resulting in a substantially lower input impedance that renders it inappropriate for high-impedance sensing or precision integration applications. Its input offset voltage is also inferior (2 mV vs. 600 µV), degrading DC accuracy, and its lower bandwidth (1 MHz vs. 2 MHz) may limit high-frequency performance. Although it offers a wider supply voltage range (3-32 V vs. 7-36 V) and a higher output current (40 mA vs. 80 mA), its supply current per channel is significantly higher (800 µA vs. 290 µA), leading to greater power dissipation. It might only be considered a marginal substitute in cost-sensitive, low-frequency general-purpose amplification scenarios where input characteristics are not critical, but this would come at the expense of precision and performance.