LM4040 Precision Voltage Reference Source Board, 0.1% Accuracy, High-Precision Voltage Reference Module Board The module is based on the LM4040 precision reference IC, which offers low temperature drift and excellent long‑term stability. The board layout is optimized for low noise and reliable performance, ensuring that your system maintains a consistent reference voltage even under varying environmental and load conditions. High precision 0.1% accuracy: Ensures highly accurate reference voltage, suitable for demanding measurement and control systems. Dedicated voltage reference module: Specially designed board to provide a clean and stable voltage reference for microcontrollers and other digital or analog circuits. Stable LM4040 reference IC: Utilizes the LM4040 precision reference chip known for low temperature coefficient and excellent long‑term stability. Ideal for microcontroller applications: Perfect for improving the accuracy of MCU ADC readings and DAC outputs in data acquisition, instrumentation, and control projects. Low noise, stable output: Carefully designed PCB layout and component selection help reduce noise and improve reliability of the reference voltage. Easy integration: Compact board with clearly labeled pins for simple connection to existing circuits, breadboards, or prototype systems. operation over a wide range of working conditions. This high precision voltage reference module board is an excellent choice for engineers, students, and hobbyists who need a reliable and accurate reference source for microcontroller‑based projects, experimental setups, and precision measurement systems. Color: As Shown Material: Metal Package Contents: 1*Precision Voltage Reference Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.