The recommended PCB layout for the MAX921CUA+ involves placing the device near the input signal source, using a solid ground plane, and minimizing the length of the input traces to reduce noise and signal degradation.
To optimize the MAX921CUA+ for low-power operation, use the shutdown mode (SHDN) to reduce power consumption when the device is not in use, and consider using a lower supply voltage (e.g., 3.3V) if possible.
The MAX921CUA+ can handle input signal amplitudes up to ±5V, but it's recommended to limit the input amplitude to ±3V to ensure optimal performance and prevent damage to the device.
To filter out noise and interference in the input signal, consider adding external filters (e.g., RC filters or ferrite beads) to the input lines, and use the MAX921CUA+'s built-in 50MHz bandwidth to reject high-frequency noise.
The typical settling time of the MAX921CUA+ is approximately 1.5μs, but this can vary depending on the input signal frequency and amplitude, as well as the output load capacitance.
MAX921CUA+ datasheet
by Maxim Integrated Products
