Texas Instruments

LM4140ACM-4.1

LM4140ACM-4.1 Description

The LM4140ACM-4.1 is a precision voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 4.096V with an impressive tolerance of ±0.1%. This device is ideal for applications requiring high accuracy and stability in voltage reference. The LM4140ACM-4.1 operates within an input voltage range of 1.8V to 5.5V, making it suitable for a variety of power supply environments. It features a low supply current of 400µA, which is beneficial for energy-efficient designs. The device also boasts a low temperature coefficient of 3ppm/°C, ensuring minimal drift over the operating temperature range of 0°C to 70°C. The LM4140ACM-4.1 is available in a surface-mount package, specifically an 8SOIC, and is housed in a tube for easy handling and integration into PCB designs. Despite its obsolescence status, the LM4140ACM-4.1 remains a reliable choice for applications where precision and stability are paramount.

LM4140ACM-4.1 Features

• Precision Output Voltage: The LM4140ACM-4.1 provides a fixed output voltage of 4.096V with a tight tolerance of ±0.1%, ensuring high accuracy in voltage reference applications.
• Low Temperature Coefficient: With a temperature coefficient of 3ppm/°C, the device maintains stability across the operating temperature range of 0°C to 70°C, minimizing voltage drift.
• Low Supply Current: The device operates with a low supply current of 400µA, making it energy-efficient and suitable for low-power applications.
• Wide Input Voltage Range: The LM4140ACM-4.1 can operate within an input voltage range of 1.8V to 5.5V, providing flexibility in power supply design.
• Surface-Mount Packaging: The 8SOIC package and tube housing make the device easy to integrate into surface-mount PCB designs.
• Compliance and Status: The LM4140ACM-4.1 is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations.

LM4140ACM-4.1 Applications

The LM4140ACM-4.1 is well-suited for applications requiring a stable and precise voltage reference. Its low temperature coefficient and high accuracy make it ideal for:

• Analog-to-Digital Converters (ADCs): Ensuring accurate and stable reference voltage for precise conversions.
• Digital-to-Analog Converters (DACs): Providing a stable reference voltage to maintain output accuracy.
• Precision Voltage Measurement: Used in instruments and equipment requiring high-accuracy voltage references.
• Power Management Circuits: Offering a reliable reference voltage for voltage regulators and power supply designs.
• Medical Equipment: Ensuring precise voltage reference for critical measurements and control systems.
• Industrial Automation: Providing stable reference voltages for sensors and control systems in harsh environments.

Conclusion of LM4140ACM-4.1

The LM4140ACM-4.1 from Texas Instruments is a high-precision voltage reference IC that offers exceptional performance in terms of accuracy, stability, and low power consumption. Its fixed output voltage of 4.096V with a ±0.1% tolerance and low temperature coefficient of 3ppm/°C make it a reliable choice for applications requiring high accuracy and minimal drift. The device's low supply current of 400µA and wide input voltage range of 1.8V to 5.5V further enhance its versatility. Despite its obsolescence status, the LM4140ACM-4.1 remains a valuable component for precision voltage reference needs, particularly in applications such as ADCs, DACs, medical equipment, and industrial automation systems.