The maximum power dissipation of the OPA2170AIDSGR is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 125°C/W.
To ensure stability in a unity-gain configuration, it's recommended to add a capacitor (typically 10-22pF) between the output and the inverting input pins to compensate for the op-amp's internal capacitance and ensure stability.
To minimize noise and EMI, it's recommended to keep the input and output traces short and away from each other, use a ground plane, and avoid running sensitive traces near the op-amp's power pins. Additionally, decoupling capacitors should be placed close to the op-amp's power pins.
The OPA2170AIDSGR is rated for operation up to 125°C, but its performance may degrade at higher temperatures. If you need to operate the op-amp in a high-temperature environment, you should consult the datasheet and application notes for guidance on thermal management and derating.
The choice of resistors and capacitors for the feedback network depends on the specific application and desired frequency response. As a general rule, use low-tolerance resistors (1% or better) and NP0 or C0G capacitors to minimize temperature-related drift and ensure stable operation.
OPA2170AIDSGR datasheet
by Texas Instruments
