1. AD8229HRZ Substitution Conclusion The AD8229HRZ cannot be directly substituted for the OP07CDG4. These two devices are fundamentally different: the OP07CDG4 is a general-purpose operational amplifier, whereas the AD8229HRZ is an instrumentation amplifier. Their circuit topologies, external configurations, and pinouts are incompatible; a direct replacement would result in circuit malfunction. Key differences include: the AD8229HRZ offers significantly higher bandwidth (15 MHz) and slew rate (22 V/µs) compared to the OP07CDG4 (600 kHz, 0.3 V/µs), making it suitable for higher‑frequency signal processing. However, its input offset voltage (100 µV) is worse than that of the OP07CDG4 (60 µV), giving it slightly lower DC accuracy. Its quiescent current (6.7 mA) is notably higher than the OP07’s typical value (~2 mA), leading to greater power dissipation. Additionally, its supply range (8–34 V) is narrower than that of the OP07 (6–36 V). If the system requires higher speed and common‑mode rejection, and if a circuit redesign and increased power consumption are acceptable, the AD8229HRZ could be considered as an architectural upgrade. Otherwise, it is not a viable substitute.