Texas Instruments recommends a star-ground topology for the analog and digital grounds, with separate analog and digital power planes. Keep the analog and digital signals separate, and use a solid ground plane to minimize noise and crosstalk.
Use a high-precision voltage reference, such as the Texas Instruments REF5025, and ensure it is properly decoupled and filtered. Also, consider using a voltage reference with a low temperature coefficient to minimize drift.
The recommended clock frequency is 100 MHz, and the DAC8218SRGZT can tolerate up to 100 ps of clock jitter. However, it's recommended to keep the clock jitter as low as possible to ensure optimal performance.
Use a high-quality clock source, ensure proper power supply decoupling, and optimize the output stage with a low-pass filter to reduce distortion and noise. Additionally, consider using a differential output configuration to improve common-mode rejection.
Use a thermal pad or a heat sink to dissipate heat, and ensure good airflow around the device. Keep the ambient temperature below 85°C to ensure reliable operation and minimize thermal-induced errors.
DAC8218SRGZT datasheet
by Texas Instruments
