The **ADR5041BRTZ-R2** is a high-precision shunt mode voltage reference manufactured by Analog Devices. It is designed for space-constrained applications requiring high stability and low power consumption. --- ### 1. Key Technical Specifications The following table highlights the core electrical characteristics of the ADR5041BRTZ-R2: | Parameter | Specification | | :--- | :--- | | **Output Voltage ($V_{out}$)** | 2.500 V | | **Initial Accuracy** | ±0.1% (±2.5 mV) | | **Temperature Coefficient** | 75 ppm/°C | | **Operating Current Range** | 50 µA to 15 mA | | **Package Type** | SOT-23-3 | | **Operating Temperature** | -40°C to +125°C | | **Output Noise** | 120 µV p-p (0.1 Hz to 10 Hz) | --- ### 2. Functional Description The device acts as a **Shunt Voltage Reference** (similar to a high-precision Zener diode). It maintains a constant voltage across its terminals by varying the amount of current it shunts to ground. #### Core Features: * **No Output Capacitor Required:** Unlike many other references, the ADR504x family is stable without an external output capacitor, saving PCB space. * **Low Power:** With a minimum operating current of only 50 µA, it is ideal for battery-powered handheld devices. * **Fixed Output:** It provides a rock-steady 2.5V reference point for Analog-to-Digital Converters (ADCs). --- ### 3. Typical Application Circuit To use the ADR5041, you must provide a current-limiting resistor ($R_{S}$) to ensure the device stays within its operating current range ($I_{Q}$). ```c V_supply (e.g., 5V) | [ R_s ] <-- Current Limiting Resistor | +----------o Output (2.5V Reference) | | [ ADR5041 ] [ Load ] | | GND GND ``` **Calculation Formula:** $R_s = \frac{V_{supply} - V_{out}}{I_{load} + I_{q}}$ --- ### 4. Part Number Breakdown Understanding the suffix codes: * **ADR5041**: Base Model (2.5V Output). * **B**: Grade (Refers to the ±0.1% initial accuracy). * **RTZ**: Package Code (SOT-23). * **R2**: Tape and Reel size (typically 250 units per reel).