1. TSV358AIYDT Substitution Conclusion The TSV358AIYDT is not a viable substitute, primarily due to significant deviations in its key performance parameters from the original AD8602WARZ-RL. Its input bias current is as high as 70 nA (compared to 0.2 pA for the AD8602), which could introduce unacceptable errors in applications requiring high input impedance, such as precision sensor interfaces, integrator circuits, or low-leakage current designs. Furthermore, its bandwidth (1.4 MHz) and slew rate (0.6 V/µs) are substantially lower than those of the original part, severely limiting signal processing speed and dynamic response. This makes it suitable only for very low-speed applications. Although it offers a wider supply voltage range (2.5–6 V), automotive-grade qualification (AEC-Q100), and slightly higher output current capability, these advantages do not compensate for its core performance shortcomings. Consequently, the TSV358AIYDT cannot directly replace the AD8602 in precision, high-speed signal chains.