Texas Instruments

LM4121AIM5-ADJ

LM4121AIM5-ADJ Description

The LM4121AIM5-ADJ is an adjustable series voltage reference IC designed by Texas Instruments, featuring a compact SOT23-5 package. This device is ideal for applications requiring high precision and low noise, with a tolerance of ±0.2% and a low temperature coefficient of 50ppm/°C. The LM4121AIM5-ADJ offers an adjustable output voltage ranging from 1.216V to 12V, making it suitable for a wide range of voltage requirements. It operates within an input voltage range of 1.5V to 12V and provides a stable output current of 5mA. The device consumes only 275µA of supply current, ensuring high efficiency and minimal power loss.

LM4121AIM5-ADJ Features

• Adjustable Output Voltage: The LM4121AIM5-ADJ provides an adjustable output voltage from 1.216V to 12V, offering flexibility for various applications.
• Low Noise Performance: With a noise level of 30µVrms from 10Hz to 10kHz, this voltage reference ensures high signal integrity and minimal interference.
• High Precision: The ±0.2% tolerance guarantees accurate voltage regulation, essential for precision applications.
• Low Temperature Coefficient: The 50ppm/°C temperature coefficient ensures stable performance across a wide temperature range.
• Low Supply Current: Consuming only 275µA of supply current, the LM4121AIM5-ADJ is highly efficient, making it suitable for low-power applications.
• Surface Mount Packaging: The SOT23-5 package is ideal for surface mount applications, providing a compact and reliable solution.
• Moisture Sens Levelitivity 1: The MSL 1 (Unlimited) rating ensures the device is suitable for a wide range of manufacturing environments.
• Compliance: The LM4121AIM5-ADJ is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM4121AIM5-ADJ Applications

The LM4121AIM5-ADJ is well-suited for a variety of applications where precision voltage references are required. These include:

• Analog-to-Digital Converters (ADCs): The low noise and high precision make it ideal for providing a stable reference voltage for ADCs.
• Digital-to-Analog Converters (DACs): Ensures accurate output levels by providing a stable reference voltage.
• Precision Measurement Equipment: The ±0.2% tolerance and low temperature coefficient are critical for maintaining accuracy in precision measurement devices.
• Power Supply Circuits: Provides a stable reference voltage for voltage regulators and other power supply applications.
• Medical and Industrial Equipment: The compact size and high reliability make it suitable for use in medical and industrial applications where space is limited and precision is paramount.

Conclusion of LM4121AIM5-ADJ

The LM4121AIM5-ADJ from Texas Instruments is a versatile and high-performance adjustable voltage reference IC. Its combination of low noise, high precision, and adjustable output voltage makes it a valuable component for a wide range of precision applications. Despite being marked as obsolete, the LM4121AIM5-ADJ remains a reliable choice for engineers and designers seeking a compact, efficient, and precise voltage reference. soluti