The REF02AZ/883B is a high-precision voltage reference, and its performance can be affected by the PCB layout and placement. It is recommended to place the device close to the analog-to-digital converter (ADC) or digital-to-analog converter (DAC) it is supplying, and to use a solid ground plane to minimize noise. Additionally, the input and output pins should be routed away from high-frequency signals and digital lines to prevent noise coupling.
To ensure proper decoupling, a 10uF to 22uF ceramic capacitor should be placed as close as possible to the REF02AZ/883B's input pin (VIN). Additionally, a 100nF to 1uF ceramic capacitor can be placed between the output pin (VOUT) and ground to filter out high-frequency noise. It is also recommended to use a low-ESR capacitor to minimize impedance and prevent oscillations.
The maximum allowed input voltage for the REF02AZ/883B is 12V. Exceeding this voltage can cause damage to the device. It is recommended to use a voltage regulator or a resistive divider network to ensure the input voltage remains within the specified range.
Yes, the REF02AZ/883B can be used in a system with a switching power supply, but it is recommended to add additional filtering to remove high-frequency noise and ripple from the power supply. A pi-filter or an LC filter can be used to filter out the noise and ensure a clean input voltage to the REF02AZ/883B.
The output voltage tolerance of the REF02AZ/883B can be calculated by adding the initial accuracy (±0.05% for the REF02AZ/883B) to the temperature coefficient (±10ppm/°C). This will give the total output voltage tolerance over the operating temperature range.
