The REF01CESA+T 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 and filtering, it is recommended to use a 10uF to 22uF ceramic capacitor in parallel with a 1uF to 10uF film capacitor between the VCC pin and GND pin. Additionally, a 100nF to 1uF capacitor can be used between the output pin and GND pin to filter out high-frequency noise. The capacitors should be placed as close to the device as possible to minimize inductance.
The recommended input voltage range for the REF01CESA+T is 4.5V to 18V. Operating the device outside of this range may affect its performance and accuracy. It is also important to ensure that the input voltage is well-regulated and free of noise to maintain the device's accuracy.
The REF01CESA+T has a maximum operating temperature range of -40°C to +125°C. To ensure reliable operation, it is recommended to keep the device within a temperature range of -20°C to +85°C. Additionally, the device should be mounted on a PCB with a thermal pad to dissipate heat, and the surrounding components should be chosen to minimize thermal resistance.
The typical output impedance of the REF01CESA+T is around 0.2 ohms. This low output impedance ensures that the device can drive capacitive loads and maintain its accuracy. However, it is still important to consider the output impedance when designing the circuit to ensure that it meets the required specifications.
REF01CESA+T datasheet
by Maxim Integrated Products
