1. OPA364AIDBVR Substitution Conclusion The OPA364AIDBVR is generally compatible with the original AD8613AUJZ-REEL7 in terms of package (SOT-23-5 type) and supply voltage range (1.8 V to 5.5 V). However, key differences include a significantly higher gain-bandwidth product (7 MHz vs. 400 kHz) and slew rate (5 V/µs vs. 0.1 V/µs), which provide superior performance in high-frequency signal processing at the cost of higher power consumption (quiescent current 1.1 mA vs. 38 µA). Additionally, its higher input offset voltage (1 mV vs. 400 µV) and higher input bias current (1 pA vs. 0.2 pA) may increase signal errors in applications requiring high precision and low noise. Therefore, substitution feasibility depends on the specific design requirements: it can be used if high-speed response is prioritized and higher power consumption with lower precision is acceptable; it is not suitable for direct replacement if low power consumption and high precision are critical.