Texas Instruments

LM4140CCMX-1.2  

Voltage References

LM4140CCMX-1.2 Description

The LM4140CCMX-1.2 is a precision voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 1.25V with a tolerance of ±0.1%. This device is part of the LM4140 series, known for its high accuracy and stability. The LM4140CCMX-1.2 operates within an input voltage range of 1.8V to 5.5V and can deliver an output current of up to 8 mA. It features a low supply current of 375µA, making it suitable for low-power applications. The device is housed in a surface-mount package, specifically in a Tape & Reel (TR) format, which is ideal for automated assembly processes. The operating temperature range is from 0°C to 70°C (TA), and it has a temperature coefficient of 10ppm/°C, ensuring minimal drift over temperature variations. The LM4140CCMX-1.2 is classified under ECCN EAR99 and HTSUS 8542.39.0001, with a moisture sensitivity level (MSL) of 1 (Unlimited). Although the product status is marked as obsolete, it remains a reliable choice for applications requiring a highly accurate voltage reference.

LM4140CCMX-1.2 Features

• High Accuracy and Stability: The LM4140CCMX-1.2 provides a fixed output voltage of 1.25V with a tight tolerance of ±0.1%, ensuring precise voltage regulation in various applications.
• Low Supply Current: With a supply current of only 375µA, this device is highly efficient, making it suitable for low-power and battery-operated systems.
• Wide Input Voltage Range: The device operates within an input voltage range of 1.8V to 5.5V, providing flexibility in power supply requirements.
• High Output Current Capability: The LM4140CCMX-1.2 can deliver up to 8 mA of output current, supporting a wide range of load conditions.
• Low Temperature Coefficient: A temperature coefficient of 10ppm/°C ensures minimal drift over temperature variations, maintaining accuracy across the operating temperature range of 0°C to 70°C (TA).
• Surface-Mount Packaging: The Tape & Reel (TR) packaging format is ideal for automated assembly processes, enhancing manufacturing efficiency.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the device is suitable for various environmental conditions without the need for special handling.

LM4140CCMX-1.2 Applications

The LM4140CCMX-1.2 is ideal for applications requiring a highly accurate and stable voltage reference. Specific use cases include:

• Analog-to-Digital Converters (ADCs): The high accuracy and stability of the LM4140CCMX-1.2 make it an excellent reference voltage source for ADCs, ensuring precise conversion and minimal error.
• Digital-to-Analog Converters (DACs): In DAC applications, the low temperature coefficient and tight tolerance of the LM4140CCMX-1.2 help maintain accurate output signals.
• Power Management Systems: The low supply current and wide input voltage range make this device suitable for power management applications where efficiency and flexibility are critical.
• Battery-Powered Devices: The low power consumption and high accuracy of the LM4140CCMX-1.2 make it ideal for battery-powered devices, extending battery life while maintaining performance.
• Precision Measurement Instruments: The device's high accuracy and stability are essential for precision measurement instruments, ensuring reliable and repeatable results.

Conclusion of LM4140CCMX-1.2

The LM4140CCMX-1.2 is a highly accurate and stable voltage reference IC that offers significant advantages over similar models. Its low supply current, wide input voltage range, and high output current capability make it suitable for a variety of applications, particularly those requiring precision and efficiency. Despite being marked as obsolete, the LM4140CCMX-1.2 remains a reliable choice for designers seeking a high-performance voltage reference in their power management and precision measurement systems.

LM4140CCMX-1.2 Documents

Download datasheets and manufacturer documentation for LM4140CCMX-1.2

Datasheets :

LM4140 Datasheet