1. AD8610ARZ Substitution Conclusion The AD8610ARZ outperforms the original TLE2071ACD in most AC performance parameters, but its substitution feasibility is subject to critical limitations, leading to a conditional replacement conclusion. Key differences are as follows: First, the supply voltage range of the AD8610ARZ (±5V to ±13V or 10V to 26V) is significantly narrower than that of the TLE2071ACD (±2.25V to ±19V or 4.5V to 38V). Direct substitution is not possible if the original design uses a single supply below 10V, a dual supply below ±5V, or voltages exceeding 26V/±13V. Second, the quiescent current of the AD8610ARZ (3mA) is nearly double that of the TLE2071ACD (1.7mA), which will lead to a noticeable increase in system power consumption. Third, regarding performance advantages, the AD8610ARZ offers a higher gain-bandwidth product (25 MHz vs. 10 MHz), a faster slew rate (60V/µs vs. 45V/µs), as well as lower input bias current (3 pA vs. 20 pA) and lower offset voltage (85 µV vs. 470 µV), resulting in superior performance in bandwidth, speed, precision, and input impedance. Substitution is only viable if the original circuit's supply voltage fully complies with the AD8610ARZ's range and the higher power dissipation is acceptable, potentially yielding better performance.