Texas Instruments

REF5045AIDG4

REF5045AIDG4 Description

The REF5045AIDG4 is a precision voltage reference IC from Texas Instruments, designed to provide a highly stable and accurate reference voltage for a variety of power management applications. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in an 8SOIC package. It features a fixed output voltage of 4.5V with a tolerance of ±0.1%, ensuring precise and reliable performance. The REF5045AIDG4 operates with an input voltage range of 4.7V to 18V, making it suitable for a wide range of power supply configurations.

REF5045AIDG4 Features

• High Accuracy: The REF5045AIDG4 offers a tight tolerance of ±0.1%, ensuring that the output voltage remains highly stable and accurate over a wide range of operating conditions.
• Low Noise: With a noise level of 13.5µVpp/V from 0.1Hz to 10Hz, this voltage reference provides clean and stable output, which is crucial for sensitive analog circuits.
• Low Temperature Coefficient: The device has a temperature coefficient of 8mpp/°C, ensuring minimal drift in output voltage over a wide temperature range.
• Low Supply Current: The REF5045AIDG4 operates on a supply current of only 1.2mA, making it energy-efficient and suitable for low-power applications.
• High Output Current Capability: It can deliver up to 10mA of output current, making it suitable for driving multiple loads or high-current applications.
• Surface Mount Technology: The surface mount package type allows for easy integration into compact and high-density PCB designs.
• Compliance and Safety: The REF5045AIDG4 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 2 (1 Year), the device is suitable for long-term storage and assembly processes.

REF5045AIDG4 Applications

The REF5045AIDG4 is ideal for applications requiring high precision and stability in voltage reference. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): The low noise and high accuracy of the REF5045AIDG4 make it an excellent reference for ADCs, ensuring accurate and reliable digital conversions.
• Digital-to-Analog Converters (DACs): The stable output voltage helps maintain the precision of DAC outputs, making it suitable for applications such as signal processing and control systems.
• Power Supply Circuits: The device can be used as a reference in voltage regulators and power supplies to ensure stable and accurate output voltages.
• Instrumentation and Measurement Equipment: The REF5045AIDG4's high accuracy and low drift make it suitable for precision measurement equipment where reliable reference voltages are critical.

Conclusion of REF5045AIDG4

The REF5045AIDG4 from Texas Instruments is a high-performance voltage reference IC that offers exceptional accuracy, low noise, and stability. Its low supply current and high output current capability make it suitable for a wide range of applications, including ADCs, DACs, power supplies, and precision measurement equipment. While the product is now obsolete, its legacy in providing reliable and precise voltage references remains significant. For new designs, engineers may consider alternative models from Texas Instruments that build upon the REF5045AIDG4's foundation, offering enhanced performance and additional features.