


Texas Instruments
REF5040AID
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REF5040AID Description
REF5040AID Description
The REF5040AID from Texas Instruments is a high-precision, low-noise, series voltage reference designed for demanding industrial and instrumentation applications. With a fixed output voltage of 4.096V and an exceptional tolerance of ±0.1%, this device ensures outstanding accuracy in voltage regulation. It operates over a wide input voltage range of 4.296V to 18V, making it versatile for various power supply configurations. The REF5040AID features a low 1.2mA supply current and delivers a stable 10mA output current, ideal for power-sensitive designs. Packaged in an 8-pin SOIC tube, it is RoHS3 compliant and rated for MSL 2 (1 Year), ensuring reliability in surface-mount applications.
REF5040AID Features
- Ultra-Low Noise: 12µVpp/V (0.1Hz to 10Hz) ensures minimal signal interference in precision circuits.
- High Accuracy: ±0.1% initial tolerance and 8ppm/°C temperature coefficient for stable performance across temperature variations.
- Low Power Consumption: 1.2mA supply current extends battery life in portable applications.
- Robust Design: 10mA output current capability supports driving multiple loads without degradation.
- Wide Input Range: 4.296V to 18V compatibility suits diverse power supply architectures.
- Industry-Standard Packaging: 8-pin SOIC (Surface Mount) with REACH Unaffected and EAR99 compliance for global deployment.
REF5040AID Applications
- Precision Data Acquisition Systems: Ensures accurate ADC/DAC reference voltages in medical and test equipment.
- Industrial Automation: Provides stable voltage references for PLCs, sensors, and control systems.
- Portable Instruments: Low power consumption makes it ideal for handheld meters and battery-operated devices.
- Communications Infrastructure: Maintains signal integrity in base stations and RF modules.
- Automotive Electronics: Suitable for ECU and sensor calibration due to its high temperature stability.
Conclusion of REF5040AID
The REF5040AID stands out as a high-performance voltage reference, combining low noise, high accuracy, and low power consumption in a compact SOIC package. Its wide input range and robust output drive make it a superior choice for precision applications in industrial, automotive, and portable electronics. For engineers seeking a reliable, high-accuracy reference with minimal thermal drift, the REF5040AID delivers exceptional value and performance.



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