Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general best practices for op-amp layout, such as keeping the input and output traces separate, using a solid ground plane, and minimizing parasitic capacitance.
The gain resistors should be chosen based on the desired gain and bandwidth of the amplifier. A higher gain will result in a lower bandwidth, and vice versa. The datasheet provides a gain-bandwidth product graph to help with this selection.
The maximum power dissipation of the LMP2231 is dependent on the ambient temperature and the thermal resistance of the package. The datasheet provides a power dissipation graph to help determine the maximum power dissipation for a given temperature.
Yes, the LMP2231 can be used as a unity-gain buffer by connecting the output to the inverting input and using a gain resistor of 0 ohms. However, this will reduce the input impedance and may affect the noise performance.
The LMP2231 has built-in ESD protection, but it's still important to follow proper handling and storage procedures to prevent damage. Additionally, using ESD protection devices such as TVS diodes or ESD arrays can provide additional protection.
LMP2231AMA/NOPB datasheet
by Texas Instruments
