1. TL082IDT Substitution Conclusion Direct substitution is not recommended. The core differences between the TL082IDT and the AD8672ARZ lie in input characteristics and precision: the input offset voltage of the TL082 (3 mV) is two orders of magnitude higher than that of the AD8672 (20 µV), and its gain-bandwidth product (4 MHz) is lower than that of the AD8672 (10 MHz). In applications requiring high DC accuracy or wide-bandwidth signal fidelity—such as precision sensor amplification or high-resolution data acquisition—the TL082 would introduce significant error and limit bandwidth response. However, its advantages include lower input bias current (20 pA, suitable for high-impedance signal sources), higher slew rate (16 V/µs, suitable for medium-speed transient response), and lower quiescent current. It is therefore only suitable for general-purpose circuits where offset voltage is not critical and speed or power consumption is prioritized—such as audio processing or signal buffering—while noting the limitation of its J-FET structure regarding unity-gain stability.