Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The analog input traces should be short and direct, and the digital output traces should be routed away from the analog inputs. Additionally, decoupling capacitors should be placed close to the device to filter out noise.
The internal reference voltage of the TLV5639CPW is 2.5V, and it is recommended to use this internal reference for most applications. However, if an external reference voltage is required, it can be connected to the REF pin, but it must be within the specified range of 2.4V to 2.6V. The internal reference can be disabled by connecting the REF pin to the VCC pin.
The maximum sampling rate of the TLV5639CPW is 1.5 MSPS, and it affects the power consumption significantly. At higher sampling rates, the power consumption increases, and the device may require more power to operate accurately. It is recommended to use the lowest sampling rate required for the application to minimize power consumption.
The TLV5639CPW outputs data in a 16-bit parallel format, but it can be easily converted to other formats such as SPI or I2C using external logic or a microcontroller. The device also has a built-in feature to swap the byte order of the output data, which can be useful when working with microcontrollers that require a different data format.
The TLV5639CPW has an operating temperature range of -40°C to 125°C, and the accuracy of the conversions is affected by temperature. The device has a built-in temperature sensor that can be used to monitor the temperature, and the conversion results can be corrected for temperature effects using external calibration and compensation techniques.
TLV5639CPW datasheet
by Texas Instruments
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