Texas Instruments

LM4040AIZ-2.5

LM4040AIZ-2.5 Description

The LM4040AIZ-2.5 is a precision shunt voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 2.5V with a tolerance of ±0.1%. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a through-hole TO92-3 package. Despite being marked as obsolete, the LM4040AIZ-2.5 remains a reliable choice for applications requiring high precision and stability. The device features a low temperature coefficient of 100ppm/°C, ensuring minimal drift over varying temperatures. It also boasts low noise levels, with 3µ5Vrms noise measured from 10Hz to 10kHz, making it suitable for sensitive analog circuits. The LM4040AIZ-2.5 has a maximum cathode current of 65µA and can support up to 15mA of output current, providing robust performance in a compact form factor.

LM4040AIZ-2.5 Features

• Fixed Output Voltage: Provides a stable 2.5V output voltage, ideal for applications requiring a precise reference voltage.
• High Precision: Achieves a tight tolerance of ±0.1%, ensuring accurate voltage regulation.
• Low Temperature Coefficient: With a temperature coefficient of 100ppm/°C, it maintains stability across a wide temperature range.
• Low Noise Performance: Exhibits low noise levels of 35µVrms from 10Hz to 10kHz, minimizing interference in sensitive circuits.
• High Current Capability: Supports up to 15mA of output current, suitable for demanding applications.
• Low Cathode Current: Operates with a low cathode current of 65µA, reducing power consumption.
• Through-Hole Mounting: Utilizes a through-hole TO92-3 package, facilitating easy integration into various PCB designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited), ensuring reliability in various environmental conditions.
• Compliance: REACH Unaffected and ECCN EAR99, meeting regulatory standards for global use.

LM4040AIZ-2.5 Applications

The LM4040AIZ-2.5 is well-suited for a variety of applications where precise voltage references are critical. These include:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate conversions.
• Digital-to-Analog Converters (DACs): Ensures precise output levels by offering a reliable reference.
• Power Supply Circuits: Acts as a reference for voltage regulators and power management systems.
• Instrumentation and Measurement Equipment: Enhances accuracy in precision instruments.
• Medical Devices: Ensures reliable performance in sensitive medical equipment.
• Industrial Control Systems: Provides stable reference voltages for control and monitoring.

applications### Conclusion of LM4040AIZ-2.5

The LM4040AIZ-2.5 is a versatile and reliable shunt voltage reference IC, offering high precision and stability. Despite its obsolete status, it remains a valuable component for applications requiring a precise 2.5V reference voltage. Its low temperature coefficient, low noise performance, and high current capability make it a standout choice in the power management domain. Whether used in ADCs, DACs, or other precision circuits, the LM4040AIZ-2.5 ensures accurate and reliable operation, making it an essential component for engineers and designers in the electronics industry.