Texas Instruments

LM4040B82IDBZTG4

LM4040B82IDBZTG4 Description

The LM4040B82IDBZTG4 is a precision shunt voltage reference IC designed by Texas Instruments. This device is known for its high accuracy and stability, making it an ideal choice for applications requiring precise voltage regulation. The LM4040B82IDBZTG4 features a fixed output voltage of 8.192V with a tolerance of ±0.2%, ensuring consistent performance across a wide range of operating conditions. It is housed in a compact SOT23-3 package, which is suitable for surface mount applications, providing a space-efficient solution for modern electronic designs.

LM4040B82IDBZTG4 Features

• Fixed Output Voltage: The LM4040B82IDBZTG4 offers a fixed output voltage of 8.192V, which is highly stable and accurate.
• Low Temperature Coefficient: With a temperature coefficient of 100ppm/°C, this voltage reference maintains its accuracy over a wide temperature range, ensuring reliable performance in various environmental conditions.
• Low Noise: The device exhibits low noise levels of 130µVrms from 10Hz to 10kHz, which is crucial for applications requiring high signal integrity.
• High Current Capability: The LM4040B82IDBZTG4 can handle a maximum output current of 15 mA, making it suitable for applications that require higher current capabilities.
• Low Quiescent Current: The cathode current is only 110 µA, which minimizes power consumption and is beneficial for battery-operated or low-power applications.
• Compliance and Packaging: The device is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and regulatory standards. It is available in a Tape & Reel (TR) package, facilitating easy handling and assembly in automated manufacturing processes.

LM4040B82IDBZTG4 Applications

The LM4040B82IDBZTG4 is well-suited for a variety of applications where precise voltage regulation is essential. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): The high accuracy and low noise characteristics of the LM4040B82IDBZTG4 make it an excellent reference voltage source for ADCs, ensuring precise and reliable conversions.
• Digital-to-Analog Converters (DACs): In DAC applications, the stable output voltage of the LM4040B82IDBZTG4 helps maintain the accuracy of the analog output signal.
• Power Management Circuits: The device's ability to handle higher currents and its low quiescent current make it suitable for power management applications, where it can be used as a reference voltage for voltage regulators and other power-related circuits.
• Precision Measurement Equipment: The LM4040B82IDBZTG4's high accuracy and stability are beneficial in precision measurement equipment, such as voltmeters and calibrators, where accurate voltage references are critical.

Conclusion of LM4040B82IDBZTG4

The LM4040B82IDBZTG4 from Texas Instruments is a high-performance shunt voltage reference IC that offers a combination of accuracy, stability, and low noise. Its fixed output voltage of 8.192V with a tolerance of ±0.2% and a low temperature coefficient of 100ppm/°C make it an excellent choice for precision applications. The device's ability to handle up to 15 mA of output current and its low quiescent current of 110 µA further enhance its versatility and efficiency. Despite being marked as obsolete, the LM4040B82IDBZTG4 remains a reliable and robust solution for applications requiring precise voltage references. Its compact SOT23-3 package and surface mount compatibility make it easy to integrate into modern electronic designs.