LTC2162 - IC 1-CH 16-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC48, 7 X 7 MM, LEAD FREE, PLASTIC, MO-220WKKD-2, QFN-48, Analog to Digital Converter
A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use short, direct traces for the analog signals and avoid crossing digital signals over the analog signals.
Use a low-ESR capacitor for the VCC pin, and decouple the VCC pin to the analog ground plane. Use a common-mode filter or a ferrite bead to reduce high-frequency noise. Also, ensure that the PCB layout is optimized for high-frequency signals.
The LTC2162IUK#PBF can support clock frequencies up to 100 MHz. However, the maximum clock frequency may vary depending on the specific application and the quality of the clock signal.
Ensure that the VCC pin is powered from a low-noise, low-impedance source. Use a voltage regulator or a low-dropout regulator to power the VCC pin. Also, ensure that the bias voltage (VBIAS) is set to the recommended value (typically 1.2V) to ensure optimal performance.
A 50-ohm termination resistor is recommended for the output pins (OUT+ and OUT-) to ensure optimal signal integrity and minimize reflections.