A good PCB layout for the MAX9915EXT+T involves keeping the input and output traces short and away from noise sources, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated ground plane is recommended.
The MAX9915EXT+T requires a single 2.7V to 5.5V power supply. Ensure that the power supply is clean and well-regulated. Power sequencing is not critical, but it's recommended to power up the device after the input signals are stable.
The MAX9915EXT+T can handle input signal amplitudes up to 5.5V peak-to-peak. However, it's recommended to limit the input amplitude to 3.5V peak-to-peak to ensure optimal performance and prevent damage to the device.
The MAX9915EXT+T has a fixed gain of 20dB. However, you can use external resistors to adjust the gain. Refer to the datasheet for the gain adjustment formula and resistor values.
The typical current consumption of the MAX9915EXT+T is 2.5mA. However, this can vary depending on the input signal frequency and amplitude, as well as the output load.