2. TS972IYDT Substitution Conclusion Not a direct drop-in replacement. Substitution may be considered only under very specific conditions and would require a complete circuit redesign. The TS972IYDT is also a general-purpose dual op-amp (not an instrumentation amplifier), but its rail-to-rail output and superior bandwidth (12 MHz) and slew rate (4V/µs) offer better performance than the LM258D in low-voltage, single-supply systems. Critical differences: First, its supply voltage range of 2.7V to 10V is far narrower than the AD8229HRZ's 8V to 34V, precluding its use in higher industrial voltage environments. Second, due to its architectural difference, it similarly lacks inherent high CMRR and convenient gain-setting capability. To implement instrumentation amplifier functionality with this part, one would need to construct the classic three-op-amp instrumentation amplifier circuit using three devices. This approach significantly increases design complexity, PCB footprint, and may introduce additional errors and component matching challenges. This alternative should only be considered when the system is extremely cost-sensitive, operates within the compatible voltage range, and can tolerate the associated performance degradation.