To minimize noise and ensure optimal performance, it is recommended to follow a star-grounding scheme, keep analog and digital grounds separate, and use a solid ground plane. Additionally, keep the input and output traces short and away from noise sources, and use a low-ESR capacitor for the VCC bypass.
The MAX11628EEE+ has a specific power-up and power-down sequencing requirement. The VCC pin should be powered up before the AVCC pin, and the AVCC pin should be powered down before the VCC pin. This ensures that the internal voltage regulators are properly initialized and shut down.
The recommended input impedance for the MAX11628EEE+ is 1 kΩ or less. A higher input impedance can affect the accuracy of the ADC conversion by introducing additional noise and distortion. It is recommended to use a buffer amplifier or an impedance-matching network to ensure a low input impedance.
The MAX11628EEE+ has an internal calibration mechanism that can be initiated by writing to the calibration register. It is recommended to perform a full-scale calibration after power-up and after any changes to the input range or gain settings. Additionally, the user can perform a system-level calibration by adjusting the offset and gain of the ADC output to match the system requirements.
The MAX11628EEE+ has a maximum junction temperature of 150°C. It is recommended to keep the device within a temperature range of -40°C to 85°C for optimal performance and reliability. High temperatures can affect the accuracy and reliability of the device, so it is essential to provide adequate heat sinking and thermal management.
MAX11628EEE+ datasheet
by Maxim Integrated Products
