Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using 50-ohm transmission lines for signal traces.
To ensure accurate temperature measurement, it's essential to follow proper thermal design practices, such as placing the device close to the thermal source, using a thermally conductive material for the PCB, and minimizing thermal gradients. Additionally, calibrate the device using a known temperature reference point.
The maximum cable length for the differential output depends on the specific application and the frequency of operation. As a general rule, keep the cable length as short as possible (less than 10 inches) to minimize signal degradation and noise pickup. If longer cables are required, use shielded twisted-pair cables and follow proper termination techniques.
To minimize EMI and RFI, follow proper shielding and grounding techniques, such as using a metal enclosure, shielding the device and cables, and connecting the device to a solid ground plane. Additionally, use filters and ferrite beads to reduce high-frequency noise.
The recommended power-up sequence is to apply the analog supply voltage (VCC) first, followed by the digital supply voltage (VDD). This ensures that the analog circuitry is powered up before the digital circuitry, which helps to prevent latch-up and ensures proper device operation.
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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.
