Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using 50-ohm transmission lines for input and output signals.
The feedback resistors (Rf and Rg) determine the gain of the amplifier. The recommended values are provided in the datasheet, but the optimal values may vary depending on the specific application. A good starting point is to use the recommended values and then adjust them based on the desired gain and bandwidth requirements.
The maximum power dissipation of the LMH6723MAX is dependent on the ambient temperature and the thermal resistance of the package. The datasheet provides a thermal resistance value (θJA) of 34°C/W. To ensure the device doesn't overheat, it's recommended to provide adequate heat sinking, such as a copper plane or a heat sink, and to keep the ambient temperature below 85°C.
Yes, the LMH6723MAX can be used as a single-ended amplifier. To configure it as a single-ended amplifier, connect the non-inverting input (VIN+) to the signal source, and tie the inverting input (VIN-) to ground through a resistor. The output will be single-ended, and the gain will be determined by the feedback resistors (Rf and Rg).
The recommended input termination is a 50-ohm resistor to ground, and the recommended output termination is a 50-ohm resistor to the load. This ensures maximum power transfer and minimizes reflections.
LMH6723MAX/NOPB datasheet
by Texas Instruments
