The recommended input impedance for the ADC084S101 is 1 kΩ to 10 kΩ. This ensures proper signal attenuation and prevents signal reflections.
The ADC084S101 requires a clock signal with a frequency range of 1 MHz to 20 MHz. The clock signal should be a clean, low-jitter signal with a duty cycle of 40% to 60%. It's recommended to use a clock signal with a rise and fall time of less than 5 ns.
The ADC084S101's performance is affected by temperature. The device's accuracy and linearity may degrade at high temperatures (above 85°C) or low temperatures (below -40°C). It's recommended to operate the device within the specified temperature range of -40°C to 85°C for optimal performance.
To minimize noise and interference, it's recommended to follow good PCB layout practices, such as separating analog and digital signals, using ground planes, and keeping the analog input signals away from the digital clock and output signals. Additionally, use a low-impedance power supply and decouple the power supply lines with capacitors.
The recommended power-up sequence for the ADC084S101 is to apply the analog power supply (VCC) first, followed by the digital power supply (VDD). This ensures that the analog circuitry is powered up before the digital circuitry, which helps to prevent latch-up and ensures proper device operation.
ADC084S101CIMMX/NOPB datasheet
by Texas Instruments
