A good PCB layout for the MAX9722AETE+T involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog layer to minimize noise.
The MAX9722AETE+T requires a single 2.7V to 5.5V power supply. It's recommended to power the device with a clean, low-noise power supply, and to sequence the power-on in the following order: AVDD, DVDD, and finally, the analog input signals.
The recommended input impedance for the MAX9722AETE+T is 10kΩ or higher. A lower input impedance can affect the device's performance, causing increased distortion and reduced signal-to-noise ratio.
The gain setting for the MAX9722AETE+T can be optimized by adjusting the gain resistors (Rf and Rg) to achieve the desired output level. A higher gain setting can be achieved by increasing the value of Rf or decreasing the value of Rg.
The MAX9722AETE+T has a maximum junction temperature of 150°C. To ensure reliable operation over temperature, it's recommended to provide adequate heat sinking, use a thermally conductive PCB material, and avoid operating the device near its maximum power dissipation rating.
MAX9722AETE+T datasheet
by Maxim Integrated Products
