1. TS1872AIST Substitution Conclusion Substitution is feasible under specific conditions but requires careful evaluation. Compared to the AD8532, the TS1872 offers advantages in static power consumption (500μA vs. 750μA) and input offset voltage accuracy (1mV vs. 25mV), making it more suitable for low-power, high-DC-precision applications. However, its key dynamic performance parameters are significantly weaker: its gain bandwidth product (1.8MHz vs. 3MHz) and slew rate (0.6V/µs vs. 5V/µs) are roughly half to one-eighth that of the AD8532. This results in a severe deficiency in handling AC signals or fast step responses. Furthermore, its output drive capability (80mA vs. 250mA) is substantially lower, preventing it from driving the same load. Substitution is viable only for applications involving low-frequency, low-load, high-precision, power-sensitive signal conditioning. It is not feasible for applications involving audio, intermediate frequencies, or fast signal processing, or where driving heavier loads is required.