The maximum power dissipation of the OP07CDE4 is 670mW, which is calculated based on the maximum junction temperature (150°C) and the thermal resistance from junction to ambient (θJA) of 125°C/W.
Yes, the OP07CDE4 can be used as a unity gain buffer. However, it's recommended to add a 1-2kΩ resistor in series with the input to prevent oscillation due to the op-amp's high gain-bandwidth product.
To minimize noise and oscillation, keep the input and output traces short and away from each other, use a solid ground plane, and decouple the power supply with 0.1uF and 10uF capacitors. Also, avoid running high-frequency signals near the op-amp's inputs.
The recommended capacitor value for decoupling the power supply of the OP07CDE4 is 0.1uF to 10uF, with a voltage rating that matches the power supply voltage. A 0.1uF ceramic capacitor is a good starting point.
The OP07CDE4 is rated for operation up to 125°C, but its performance may degrade at high temperatures. If you need to operate the op-amp at high temperatures, consider using a more specialized op-amp designed for high-temperature applications.
OP07CDE4 datasheet
by Texas Instruments
