Original Part
Alternative Part
1. OPA2313IDGKR Substitution Conclusion
The OPA2313IDGKR can serve as a functional drop-in replacement for the NCS20082DTBR2G with high feasibility. Their core electrical parameters are highly aligned: the supply voltage range (1.8V–5.5V), input offset voltage (500µV), output drive capability (15mA), and quiescent current (approximately 50µA per channel vs. 48µA) are nearly identical, ensuring seamless performance continuity in most low-power, low-voltage applications. The differences are as follows: the OPA2313IDGKR has a slightly lower gain-bandwidth product (1 MHz) than the original part (1.2 MHz), which may reduce the maximum usable frequency in circuits requiring higher closed-loop bandwidth or higher gain settings. However, its slew rate (0.5V/µs) is marginally better than that of the original (0.4V/µs), offering a slight advantage when handling fast transient signals. Another key difference lies in the package width: the OPA2313IDGKR comes in a 3.00mm-wide VSSOP package, while the original uses a 4.40mm-wide TSSOP, making the PCB pad layouts incompatible and necessitating a board redesign. The suffix “R” denotes tape-and-reel packaging only and does not affect electrical performance.
2. OPA2313IDGK Substitution Conclusion
The substitution conclusion for the OPA2313IDGK is identical to that for the OPA2313IDGKR, with high feasibility. This is because the OPA2313IDGK and OPA2313IDGKR are the same chip part in different packaging forms; all technical specifications, performance parameters, and package dimensions are exactly the same. Their comparison with the original NCS20082DTBR2G also shares the same differences: a slightly lower gain-bandwidth product (1 MHz vs. 1.2 MHz), a slightly higher slew rate (0.5V/µs vs. 0.4V/µs), and incompatible package physical dimensions (3.00mm vs. 4.40mm width). The only distinction is that OPA2313IDGK typically refers to tube or tray packaging, whereas OPA2313IDGKR specifically indicates tape-and-reel packaging. This difference affects only the feeder setup during SMT assembly and does not alter the device’s electrical characteristics or substitution feasibility.
Analysis ID: C61D-A6FB000
Based on part parameters and for reference only. Not to be used for procurement or production.
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