The **ADR365WAUJZ-R7** is a precision, low power, low noise voltage reference manufactured by **Analog Devices (ADI)**. It is part of the ADR36x family, specifically designed for high-accuracy applications in automotive and industrial environments. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Output Voltage ($V_{out}$)** | 5.0 V | | **Input Voltage Range** | 5.3 V to 15 V | | **Initial Accuracy** | ±0.2% (10 mV) | | **Temperature Coefficient** | 25 ppm/°C | | **Output Current** | 5 mA (source) / 2 mA (sink) | | **Quiescent Current** | 190 µA (max) | | **Package** | TSOT-23-5 (AUJZ) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Significant Features * **Automotive Grade:** The "W" in the part number signifies that it is qualified for automotive applications (**AEC-Q100**). * **Low Noise:** It provides a very clean voltage output with low high-frequency noise, essential for high-resolution data converters (ADCs/DACs). * **No External Capacitor Required:** It is stable even without a large output capacitor, saving PCB space, though one can be added for improved transient response. * **Low Dropout:** The device can operate with a very small difference between input and output voltage (300 mV). --- ### 3. Pin Configuration (TSOT-23-5) | Pin No. | Name | Description | | :--- | :--- | :--- | | 1 | **VIN** | Input Voltage Connection | | 2 | **GND** | Ground | | 3 | **SHDN** | Shutdown Pin (Active Low to reduce power) | | 4 | **NC** | No Connect | | 5 | **VOUT** | Output Reference Voltage (5.0V) | --- ### 4. Typical Applications 1. **Precision Data Acquisition:** Providing the reference voltage for 12-bit or 16-bit Analog-to-Digital Converters. 2. **Automotive Systems:** Used in Engine Control Units (ECUs) and sensor interfaces where stability over temperature is critical. 3. **Portable Instrumentation:** Due to its low quiescent current and shutdown mode, it is ideal for battery-powered devices. 4. **Industrial Process Control:** Reliable voltage biasing for 4-20mA loops and pressure sensors. --- ### 5. Part Number Breakdown * **ADR365:** Device Series (5.0V Output). * **W:** Automotive Qualified. * **AUJZ:** Package type (TSOT-5). * **R7:** Tape and Reel packaging (7-inch reel).