## ADR293TRU-EP-R7: Technical Specifications and Overview The **ADR293TRU-EP-R7** is a precision, low-power, bandgap voltage reference manufactured by Analog Devices. The "EP" suffix denotes it belongs to the **Enhanced Product** line, specifically designed for aerospace, defense, and high-reliability industrial applications. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Output Voltage ($V_{out}$)** | 5.0 V | | **Input Voltage Range** | 6.0 V to 15 V | | **Initial Accuracy** | ±10 mV (max) | | **Temperature Coefficient** | 30 ppm/°C | | **Quiescent Current** | 20 µA (max) | | **Output Current Drive** | ±5 mA | | **Operating Temperature** | -55°C to +125°C (Military Range) | | **Package Type** | 8-lead TSSOP | --- ### 2. Core Functional Features * **Low Current Consumption:** With a maximum quiescent current of 20 µA, this part is ideal for battery-operated precision instruments. * **Enhanced Product (EP) Features:** * Controlled manufacturing baseline. * Gold wire bonds. * One-lot/one-date code. * Extended product life cycle. * **Low Noise:** It provides a stable, low-noise reference signal essential for high-resolution Data Converters (ADCs and DACs). * **No External Capacitor Required:** It remains stable without an external output capacitor, saving PCB space, though one can be added to improve transient response. --- ### 3. Pin Configuration (8-Lead TSSOP) | Pin No. | Mnemonic | Description | | :--- | :--- | :--- | | 1, 8 | DNC | Do Not Connect. | | 2 | $V_{in}$ | Input Voltage Supply. | | 4 | GND | Ground. | | 6 | $V_{out}$ | Reference Voltage Output (5.0V). | | 3, 5, 7 | NC | No Internal Connection. | --- ### 4. Typical Applications 1. **Precision Data Acquisition:** Providing the reference voltage for 12-bit to 16-bit ADCs. 2. **Medical Instrumentation:** Used in portable diagnostic equipment requiring high reliability and low power. 3. **Aerospace/Defense:** Utilized in telemetry and flight control systems due to the EP (Enhanced Product) certification. 4. **Remote Sensors:** Ideal for 4 mA to 20 mA transmitter loops where power efficiency is critical. --- ### 5. Part Number Breakdown * **ADR293**: Series (5.0V output, Low Power). * **T**: Performance Grade (Temperature/Accuracy specs). * **RU**: Package Code (TSSOP). * **EP**: Enhanced Product (Military/Harsh Environment). * **R7**: Tape and Reel (7-inch reel size).