Texas Instruments provides a layout and routing guide in the ADC14155W-MLS datasheet (Section 10.1) and in the application note 'AN-1187: PCB Layout Guidelines for ADCs' (SLAA554). It's essential to follow these guidelines to minimize noise, ensure signal integrity, and achieve optimal performance.
The ADC14155W-MLS can be configured for differential or single-ended input modes using the INMODE pin. For differential mode, connect INMODE to VREF, and for single-ended mode, connect INMODE to GND. Additionally, ensure that the input signals are properly biased and terminated according to the datasheet recommendations.
The ADC14155W-MLS can operate up to 14.3 MSPS. However, the maximum sampling rate depends on the clock frequency, input frequency, and power consumption. Higher sampling rates increase power consumption. Refer to the datasheet (Section 7.3) for detailed information on sampling rates and power consumption.
The ADC14155W-MLS has a pipeline latency of 3 clock cycles. To ensure accurate data acquisition, consider the pipeline latency when designing your system. You can use the ADC's built-in latency compensation feature or implement your own latency compensation mechanism in your system design.
Proper power supply decoupling and filtering are crucial for the ADC14155W-MLS's performance. Use a combination of ceramic and electrolytic capacitors for decoupling, and consider adding a pi-filter or a ferrite bead to filter out high-frequency noise. Refer to the datasheet (Section 10.2) for more information on power supply decoupling and filtering.
ADC14155W-MLS datasheet
by Texas Instruments
Findchips
