1. LT1113CS8TRPBF Substitution Conclusion This component is a poor substitute, as it represents a comprehensive downgrade in key performance parameters compared to the AD8512. The primary differences are as follows: Its input bias current (300 pA vs. 25 pA) is an order of magnitude higher, and its input offset voltage (550 µV vs. 100 µV) is several times greater. These characteristics would introduce significant errors in applications demanding high DC precision and high input impedance, such as precision I/V conversion or photodiode amplification. Furthermore, its lower slew rate (3.9 V/µs vs. 20 V/µs) and gain-bandwidth product (5.6 MHz vs. 8 MHz) result in slower dynamic response and signal processing speed, making it unsuitable for circuits requiring fast settling or handling higher-frequency signals. Additionally, its quiescent current (5.3 mA vs. 2.2 mA) is approximately 2.4 times higher, leading to significantly increased power dissipation. The sole potential advantage is its wider supply voltage range (9 V to 40 V), but this comes at the expense of multiple core performance sacrifices.