1. TS272ACDT Substitution Conclusion From a direct replacement perspective, the TS272ACDT is not recommended as an equivalent substitute for the TLC1078IDR. Although both share the same package (8-SOIC) and supply voltage range (3V to 16V), their key performance parameters differ significantly: the TS272ACDT offers a much higher gain-bandwidth product (3.5 MHz) and slew rate (5.5 V/µs) compared to the TLC1078IDR (110 kHz, 0.032 V/µs). While this gives the TS272ACDT an advantage in dynamic response and high-speed signal processing, it may also introduce stability risks (such as oscillation) in the original low-frequency, high-precision circuit. Moreover, the TS272ACDT’s quiescent current (1 mA per channel) is about 30 times higher than that of the TLC1078IDR (29 µA per channel), which would significantly increase system power consumption and is unsuitable for battery-powered or ultra-low-power applications. Although the TS272ACDT provides higher output current capability (45 mA vs. 30 mA), its input offset voltage is worse (900 µV vs. 180 µV), potentially affecting DC accuracy. Substitution should only be considered if the application demands higher speed and drive capability while accepting trade-offs in power and precision, and only after reassessing circuit stability.