1. TL072ACDT Substitution Conclusion The TL072ACDT can serve as a replacement in applications with relaxed requirements but is likely unsuitable for high-performance audio or precision DC circuits. The core distinction lies in its J-FET input stage, which yields an input bias current (20 pA) four orders of magnitude lower than that of the NE5532 (200 nA). This is a significant advantage when interfacing with high-impedance signal sources (e.g., sensors, filters), as it minimizes input current error. However, its input offset voltage (3 mV) is substantially higher than the NE5532's (500 µV), which can introduce non-negligible DC error at the output in amplification circuits demanding high DC precision. Furthermore, its gain-bandwidth product (4 MHz) is lower than the NE5532's (10 MHz), resulting in a narrower usable bandwidth under high-gain configurations and making it unfit for high-frequency applications. While it offers a higher slew rate (16V/µs) and a wider operating voltage range, the cost premium associated with its AEC-Q100 automotive qualification must be considered.