## Overview of ADR02AKS-R2 The **ADR02AKS-R2** is a precision band gap voltage reference produced by **Analog Devices**. It is designed to provide a highly stable 5.0V output from a wide range of input voltages, making it ideal for high-resolution data acquisition systems. --- ### Key Specifications | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 5.0 V | | **Input Voltage Range** | 7.0 V to 36 V | | **Package Type** | SC-70-5 (AKS suffix) | | **Initial Accuracy** | ±10 mV (Grade B) / ±25 mV (Grade A) | | **Temperature Coefficient** | 9 ppm/°C (max) | | **Supply Current** | 1 mA (max) | | **Operating Temperature** | -40°C to +125°C | --- ### Technical Features * **High Stability:** It offers excellent line and load regulation, ensuring the 5.0V output remains constant even if the input supply fluctuates or the load changes. * **Low Noise:** Designed to minimize electrical noise, which is critical when providing a reference for 12-bit, 14-bit, or 16-bit Analog-to-Digital Converters (ADCs). * **TRIM Terminal:** The device includes a "TRIM" pin, allowing users to fine-tune the output voltage or adjust it over a narrow range using external resistors. * **Compact Footprint:** The "AKS" designation refers to the **SC-70** package, which is one of the smallest surface-mount packages available, saving significant PCB space. --- ### Pin Configuration (SC-70-5) | Pin No. | Mnemonic | Description | | :--- | :--- | :--- | | 1 | **NC** | No Connection | | 2 | **GND** | Ground | | 3 | **TRIM** | Output Voltage Trim input | | 4 | **Vout** | Reference Voltage Output (5.0V) | | 5 | **Vin** | Input Voltage Supply | --- ### Common Applications 1. **Precision Data Acquisition:** Used as a reference for ADCs and DACs. 2. **Industrial Instrumentation:** Found in process control systems and smart transmitters. 3. **Portable Equipment:** Due to its small size and low power consumption. 4. **Automotive Systems:** Suitable for high-temperature environments up to 125°C.