The recommended layout and routing for the DS1865T+ involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the traces between the device and the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure the accuracy of the 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, and minimizing thermal gradients. Additionally, calibrating the device and using a high-accuracy voltage reference can also improve the accuracy of the temperature measurement.
The maximum allowed voltage on the VCC pin is 5.5V. Exceeding this voltage can cause permanent damage to the device. It's recommended to use a voltage regulator or a voltage limiter to ensure that the voltage on the VCC pin does not exceed the maximum rating.
To handle the noise and EMI sensitivity of the DS1865T+, it's recommended to use a low-pass filter on the input pins, use a shielded cable, and keep the device away from high-frequency sources. Additionally, using a ground plane and a power plane can also help to reduce the noise and EMI sensitivity.
The recommended operating temperature range for the DS1865T+ is -40°C to +125°C. Operating the device outside of this range can affect its accuracy and reliability.
DS1865T+ datasheet
by Maxim Integrated Products
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