1. TSV851ICT Substitution Conclusion The feasibility of substituting the AZV321KSTR-G1 with the TSV851ICT is application-dependent and requires careful evaluation. Key differences include: The TSV851ICT has a lower output current (70 mA vs. 160 mA), resulting in weaker drive capability, which may be unsuitable for driving heavy loads or high-current circuits. Its higher input offset voltage (4 mV vs. 1.7 mV) can introduce greater DC error, potentially affecting precision in amplification or signal conditioning. However, the input bias current is significantly lower (27 nA vs. 250 nA), which is advantageous for high-impedance signal sources or low-power sensing applications, reducing signal distortion. The gain bandwidth product is slightly higher (1.3 MHz vs. 1 MHz), offering a marginally wider frequency response suitable for applications requiring higher bandwidth. The slew rate is lower (0.7 V/µs vs. 1 V/µs), leading to a slower response to fast-changing signals, which may limit high-frequency or transient performance. The lower end of the supply voltage range is more flexible (2.5 V vs. 2.7 V), enhancing low-voltage operation capability. If the application does not emphasize high output drive and high DC precision, the TSV851ICT can be considered as an alternative, but its dynamic response and load compatibility must be validated within the target system.