Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the analog and digital grounds separate, using a solid ground plane, and minimizing noise coupling. Additionally, ensure the layout is symmetrical and balanced to reduce common-mode noise.
The internal voltage regulator is enabled by default. To configure it, connect the VREG_EN pin to a logic high (VCC) to enable the regulator. You can also adjust the output voltage by connecting a resistor divider network between the VREG_OUT pin and the VREG_ADJ pin. Refer to the datasheet for specific configuration options and calculations.
The maximum current draw from the VCC pin is 150 mA. However, this value can vary depending on the specific application and operating conditions. It's essential to ensure the power supply can provide the required current to avoid voltage drops and ensure reliable operation.
The TMCS1101A3UQDR has a built-in thermal shutdown feature that activates when the junction temperature exceeds 150°C. To handle this, ensure proper heat sinking, use a thermal pad or heat sink, and avoid operating the device in high-temperature environments. If thermal shutdown occurs, the device will automatically recover when the temperature drops below 130°C.
The recommended input voltage range for the ADC is 0 V to VCC - 1.5 V. However, the absolute maximum input voltage is VCC + 0.3 V. Exceeding this range can damage the device. Ensure the input signal is within the recommended range to maintain accurate ADC conversions.
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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.
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