Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The input and output traces should be as short as possible and shielded from digital signals. Additionally, a 0.1uF decoupling capacitor should be placed close to the VCC pin.
The TLV2544QDR outputs a 14-bit digital signal that represents the analog input voltage. To scale and offset the output data, you can use the following equation: Output Code = (V_IN x 8192) / V_REF, where V_IN is the input voltage and V_REF is the reference voltage. You can then apply the desired scaling and offset to the output code to get the desired output value.
The maximum sampling rate of the TLV2544QDR is 65kSPS. The power consumption of the device increases with the sampling rate, so it's recommended to use the lowest sampling rate necessary for your application to minimize power consumption. At 65kSPS, the typical power consumption is around 1.5mA.
The TLV2544QDR is specified to operate from -40°C to 125°C. To ensure that the device operates within this range, you should consider the ambient temperature, the temperature rise due to self-heating, and the thermal resistance of the package. You can use thermal simulation tools or thermal management techniques such as heat sinks or thermal interfaces to keep the device within its specified temperature range.
The recommended input voltage range for the TLV2544QDR is from 0V to V_REF (which is typically 2.5V or 5V). The accuracy of the readings is affected by the input voltage range, with the highest accuracy achieved when the input voltage is within 10% of the reference voltage. It's recommended to use an input voltage range that is as close to the reference voltage as possible to ensure the highest accuracy.
TLV2544QDR datasheet
by Texas Instruments
