A good PCB layout for the THS7316DR involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
The choice of gain resistors depends on the desired gain and bandwidth of the amplifier. A higher gain resistor value will result in a higher gain, but may also reduce the bandwidth. TI provides a gain resistor calculator tool to help with the selection.
The maximum power dissipation of the THS7316DR is dependent on the ambient temperature and the thermal resistance of the package. According to the datasheet, the maximum power dissipation is 1.4W at 25°C ambient temperature. However, this can be derated based on the operating temperature and thermal resistance.
Yes, the THS7316DR can be used as a line driver. It has a high output current capability and a low output impedance, making it suitable for driving coaxial cables or other transmission lines. However, the output stage should be properly terminated to avoid reflections and ensure signal integrity.
The THS7316DR has a high bandwidth, which can make it susceptible to high-frequency noise. To filter out high-frequency noise, a low-pass filter can be added at the input or output stage. A ferrite bead or a common-mode choke can also be used to filter out high-frequency noise.