A good PCB layout for the THS3061D involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the decoupling capacitors close to the device. TI provides a recommended layout in the datasheet and application notes.
The gain resistors (Rf and Rg) should be chosen based on the desired gain and bandwidth. A higher gain requires smaller resistors, while a higher bandwidth requires larger resistors. TI provides a gain resistor calculator tool to help with the selection.
The maximum power dissipation of the THS3061D is 1.4W. This should be considered when designing the thermal management of the system, especially in high-temperature or high-power applications.
Yes, the THS3061D can be used as a single-ended amplifier by tying the negative input to ground and using the positive input as the signal input. However, this will reduce the amplifier's common-mode rejection ratio (CMRR) and may affect its noise performance.
The THS3061D has a built-in low-pass filter, but additional filtering may be necessary depending on the application. External filters, such as RC filters or ferrite beads, can be used to filter out high-frequency noise. TI provides application notes on filtering and noise reduction techniques.
THS3061D datasheet
by Texas Instruments
