A low-jitter, high-frequency clock source is recommended, such as a crystal oscillator or a high-quality clock generator. The clock source should be able to provide a stable clock signal with minimal phase noise and jitter.
To optimize the ADC's performance, consider factors such as the input signal frequency, amplitude, and impedance, as well as the desired SNR, ENOB, and conversion rate. Adjust the ADC's settings, such as the gain, offset, and clock frequency, to achieve the best possible performance for your specific application.
The maximum input voltage range for the ADC14DS105 is ±VREF, where VREF is the reference voltage. The default VREF is 1.5V, but it can be adjusted to other values using external resistors. The maximum input voltage range is typically ±1.5V, but it can be extended to ±2.5V or ±5V with external attenuation or amplification.
Metastability can occur when the ADC's output data is not stable or is oscillating between two or more values. To handle metastability, use a metastability filter or a synchronizer circuit to ensure that the output data is stable and reliable. You can also use error correction codes or checksums to detect and correct errors caused by metastability.
The power consumption of the ADC14DS105 depends on the operating frequency, voltage supply, and other factors. The typical power consumption is around 350mW at 1.8V and 65MSps. To reduce power consumption, consider using a lower operating frequency, reducing the voltage supply, or using power-down modes when the ADC is not in use.
ADC14DS105AISQ/NOPB datasheet
by Texas Instruments
