2. OPA2704UA/2K5G4 Substitution Conclusion The substitution is conditionally feasible, sharing the same applicability conditions and limitations as the OPA2703, but offering even stronger performance. The OPA2704 provides a more aggressive performance upgrade over the original part. Its gain-bandwidth product (3 MHz) and slew rate (3 V/µs) are 15 times and 30 times that of the ALD2706, respectively, while also delivering a robust output current (10 mA). This makes it highly advantageous in applications such as audio processing and buffer stages, where wider bandwidth and faster response are critical. However, like the OPA2703, it is constrained by a higher minimum operating voltage (4 V) and greater quiescent power dissipation (160 µA/channel). Therefore, the feasibility of this substitution depends entirely on whether the original design operates above 4V and is not sensitive to the increased power consumption; otherwise, a direct replacement is not viable.