1. THS3202D Substitution Conclusion The THS3202D is compatible with the HA5023IBZ in package (8-SOIC) and amplifier type (current-feedback). However, the feasibility of substitution is highly dependent on the supply voltage range. If the original design operates with a total supply voltage between 6.6V and 15V (corresponding to dual supplies of approximately ±3.3V to ±7.5V), substitution is viable, as the HA5023IBZ supports a wider range (±4.75V to ±18V, total 9.5V to 36V). Substitution is not feasible if the original application voltage exceeds 15V. Key performance differences must be noted. The THS3202D offers significantly higher bandwidth (2 GHz vs. 125 MHz) and slew rate (9000 V/µs vs. 350 V/µs), enabling it to handle very high-frequency signals and fast transient responses. This makes it suitable for more demanding applications such as high-speed video and RF. However, its higher quiescent current (14 mA vs. 7.5 mA) will increase system power dissipation. On the other hand, its stronger output current drive (120 mA vs. 20 mA) allows it to drive lower impedance loads. Provided the voltage compatibility is confirmed, the THS3202D can serve as a high-performance substitute, but a careful assessment of power budget and signal requirements is necessary.