Texas Instruments provides a layout and routing guide in the ADC1061CIWM datasheet, but it's also recommended to follow general high-speed PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using differential pairs for clock and data signals.
The ADC1061CIWM requires a high-speed clock input, typically in the range of 10-50 MHz. To handle this, use a clock buffer or a dedicated clock generator, and ensure the clock signal is clean and has minimal jitter. Also, use a series termination resistor to match the clock signal impedance to the PCB trace impedance.
The ADC1061CIWM has a built-in analog filter, but it's recommended to use an external anti-aliasing filter to remove high-frequency noise and ensure the input signal is band-limited. A 2nd or 3rd order Butterworth filter with a cutoff frequency slightly below the Nyquist frequency is a good starting point.
The ADC1061CIWM has an internal calibration mechanism, but it's recommended to perform an external calibration using a known reference voltage source. This can be done by applying a known voltage to the input pins and reading the corresponding digital output code. The calibration process should be repeated at different temperatures and supply voltages to ensure accuracy across the operating range.
Use a combination of ceramic and electrolytic capacitors to decouple the power supply pins. A 0.1uF ceramic capacitor should be placed close to the power pin, and a 10uF electrolytic capacitor should be placed further away. This will help to filter out high-frequency noise and ensure a stable power supply.
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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.
