Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. Additionally, use short traces, and avoid vias and right-angle turns to minimize EMI and noise.
Ensure proper thermal management by providing adequate heat sinking, using a thermally conductive material, and keeping the device away from heat sources. Also, follow the recommended operating temperature range of -40°C to 85°C.
Power up the VCC supply first, followed by the VREF supply. This ensures proper internal biasing and prevents damage to the device.
The TRSF3222EIDWR has built-in short-circuit protection. If an output is shorted, the device will limit the output current to prevent damage. However, it's still recommended to add external protection, such as a fuse or current-limiting resistor, to prevent damage to the device and surrounding components.
The recommended input impedance for the analog inputs is 1 kΩ or higher to ensure proper signal integrity and to prevent signal attenuation.
TRSF3222EIDWR datasheet
by Texas Instruments
