TI recommends a 4-layer PCB with a solid ground plane, and to keep analog and digital signals separate. Use short, direct traces for analog signals, and avoid crossing digital signals over analog signals. Also, decouple the power supply with 0.1uF and 10uF capacitors.
Use the internal calibration mode (CAL pin) to set the gain and offset. Apply a known input voltage, then short the CAL pin to ground. The device will adjust its gain and offset to match the input voltage. Refer to the datasheet for specific calibration procedures.
Power up the device in the following sequence: VCC, AVCC, and then DVCC. Ensure that the analog power supply (AVCC) is stable before applying the digital power supply (DVCC). Also, ensure that the input voltage is within the recommended range.
Use a low-inductance, low-capacitance PCB layout, and consider using a ground plane or shield to reduce EMI. Also, use series termination resistors (e.g., 22-33 ohms) on the digital output lines to reduce signal reflections and ringing.
The maximum input voltage range is ±10.5V. To protect the device from overvoltage, use external voltage limiting resistors or a voltage clamp circuit to limit the input voltage to within the recommended range.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
