### ADR3433ARJZ-R2: Low Power, High Precision Voltage Reference The **ADR3433ARJZ-R2** is a micro-power, high-precision CMOS voltage reference manufactured by Analog Devices. It is designed specifically for applications where stability and low power consumption are critical. --- ### 1. Key Technical Specifications The table below outlines the primary electrical characteristics of the ADR3433: | Parameter | Value / Range | Unit | | :--- | :--- | :--- | | **Output Voltage ($V_{OUT}$)** | 3.3 | V | | **Input Voltage Range** | 3.5 to 5.5 | V | | **Initial Accuracy** | ±0.1 | % | | **Temperature Coefficient** | 8 (max) | ppm/°C | | **Quiescent Current** | 100 (max) | µA | | **Output Current Drive** | ±10 | mA | | **Package Type** | SOT-23-6 | - | | **Operating Temperature** | -40 to +125 | °C | --- ### 2. Core Features and Benefits - **High Precision:** With a low temperature coefficient (8 ppm/°C), the output voltage remains highly stable even as the ambient temperature changes. - **Low Power Consumption:** It operates at a maximum of 100 µA, making it ideal for battery-operated portable devices. - **No External Capacitor Required:** It is stable without an output capacitor, though one can be added to reduce noise. - **Low Noise:** Provides low-frequency noise (0.1 Hz to 10 Hz) of approximately 25 µV p-p. --- ### 3. Pin Configuration (SOT-23-6) | Pin No. | Mnemonic | Description | | :--- | :--- | :--- | | 1 | TP | Test Point (Do not connect) | | 2 | GND | Ground | | 3 | NC | No Connect | | 4 | $V_{IN}$ | Input Voltage Supply | | 5 | NC | No Connect | | 6 | $V_{OUT}$ | Reference Voltage Output | --- ### 4. Typical Applications 1. **Precision Data Acquisition:** Used as a reference for High-Resolution ADCs (Analog-to-Digital Converters) and DACs. 2. **Portable Instrumentation:** Due to the micro-power nature, it is common in handheld multimeters and sensors. 3. **Industrial Process Control:** Reliable voltage stability for control loops. 4. **Medical Equipment:** Accurate voltage sourcing for monitoring devices. --- ### 5. Part Number Breakdown The suffix **-R2** indicates the packaging format: - **ADR3433**: Base part number (3.3V series). - **ARJZ**: Package code (SOT-23-6) and temperature grade. - **R2**: 7-inch reel containing 250 units (used for small-scale production or prototyping).