Texas Instruments

LM4140BCM-1.2

LM4140BCM-1.2 Description

The LM4140BCM-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 Power Management Integrated Circuits (PMIC) category and is housed in a surface-mount package, specifically an 8SOIC. It operates within an input voltage range of 1.8V to 5.5V and can deliver an output current of up to 8 mA. The LM4140BCM-1.2 is designed for an operating temperature range of 0°C to 70°C (TA) and features a low temperature coefficient of 6ppm/°C, ensuring stable performance across its specified temperature range. The device draws a supply current of 375µA, making it suitable for low-power applications. It is classified under ECCN EAR99 and HTSUS 8542.39.0001, with a moisture sensitivity level (MSL) of 1 (Unlimited), indicating it is not moisture-sensitive. Although the product is now obsolete, it remains a reliable choice for applications requiring high precision and stability.

LM4140BCM-1.2 Features

The LM4140BCM-1.2 boasts several unique features that set it apart from similar models in the market. Its fixed output voltage of 1.25V with a tight tolerance of ±0.1% ensures high accuracy and reliability in precision voltage reference applications. The device's low temperature coefficient of 6ppm/°C guarantees minimal drift over the operating temperature range, making it ideal for applications where temperature stability is critical. The ability to deliver up to 8 mA of output current while maintaining a low supply current of 375µA makes it suitable for low-power designs. The surface-mount package type facilitates easy integration into compact and space-constrained systems. Additionally, its REACH Unaffected status ensures compliance with environmental regulations, making it a responsible choice for modern electronics design.

LM4140BCM-1.2 Applications

The LM4140BCM-1.2 is well-suited for a variety of applications that demand high precision and stability. It is particularly ideal for precision analog circuits, such as analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), where accurate voltage references are essential for optimal performance. The device's low power consumption and compact package make it suitable for battery-powered devices and portable electronics, ensuring extended operational life without compromising on performance. Its temperature stability and low drift characteristics make it a reliable choice for industrial control systems, medical equipment, and instrumentation where consistent performance is paramount. The LM4140BCM-1.2 can also be used in automotive applications, providing a stable reference voltage for critical systems such as engine control units and advanced driver-assistance systems (ADAS).

Conclusion of LM4140BCM-1.2

In summary, the LM4140BCM-1.2 is a high-performance voltage reference IC that offers exceptional accuracy, stability, and low power consumption. Its fixed output voltage, tight tolerance, and low temperature coefficient make it a reliable solution for precision voltage reference needs. Despite its obsolete status, the LM4140BCM-1.2 remains a valuable component for applications requiring high precision and stability. Its compact surface-mount package and compliance with environmental regulations further enhance its appeal for modern electronics design. For engineers and designers seeking a dependable and precise voltage reference, the LM4140BCM-1.2 is an excellent choice.