1. AD8542ARUZ Substitution Conclusion From a technical parameter standpoint, the AD8542ARUZ cannot serve as a direct replacement for the TSV6292IST. The discrepancies between the two parts render them suitable for different application scenarios. The AD8542ARUZ's minimum operating voltage (2.7V) is significantly higher than that of the TSV6292IST (1.5V), disqualifying it for any single-supply or low-voltage system operating below 2.7V. Its quiescent current of 45µA per channel (90µA total) is substantially higher than the TSV6292IST's total of 29µA, which negatively impacts battery life in portable devices. Furthermore, its 30mA output drive capability is far lower than the TSV6292IST's 74mA, potentially causing issues when driving heavier loads such as small motors or multiple LEDs. Although the AD8542ARUZ offers advantages in input offset voltage (1mV) and slew rate (0.92V/µs), the critical differences in threshold voltage and power consumption dictate that it can only replace the TSV6292IST in designs where the operating voltage consistently exceeds 2.7V and where requirements for drive current and power consumption are not stringent.