Texas Instruments

LM4140BCM-1.0

LM4140BCM-1.0 Description

The LM4140BCM-1.0 is a precision voltage reference IC designed by Texas Instruments, offering a highly accurate and stable reference voltage for a variety of power management applications. This device features a fixed output voltage of 1.024V with an impressive tolerance of ±0.1%, ensuring precise and reliable performance. The LM4140BCM-1.0 operates within an input voltage range of 1.8V to 5.5V, making it suitable for a wide range of power supply conditions. It provides an output current capability of 8 mA, which is ideal for driving multiple loads or buffering the reference voltage.

The device is designed for surface mount applications and is housed in a tube package, facilitating easy integration into compact and high-density PCB designs. With a low supply current of 375µA, the LM4140BCM-1.0 is energy-efficient, making it suitable for battery-powered and low-power systems. The temperature coefficient of 6ppm/°C ensures minimal drift over the operating temperature range of 0°C to 70°C, maintaining accuracy across varying environmental conditions.

LM4140BCM-1.0 Features

• High Accuracy: ±0.1% tolerance on the output voltage ensures precise reference levels.
• Wide Input Voltage Range: Operates from 1.8V to 5.5V, providing flexibility in power supply design.
• Low Supply Current: 375µA supply current minimizes power consumption, ideal for low-power applications.
• Temperature Stability: 6ppm/°C temperature coefficient ensures minimal drift over the operating temperature range.
• Surface Mount Compatibility: Suitable for high-density PCB designs, facilitating compact and efficient system integration.
• High Output Current Capability: 8 mA output current capability supports multiple loads and buffering requirements.
• Series Reference Type: Provides a stable and accurate voltage reference for various power management applications.
• Moisture Sensitivity Level (MSL) 1: Unaffected by moisture, ensuring reliability in various environmental conditions.

LM4140BCM-1.0 Applications

The LM4140BCM-1.0 is ideal for applications requiring a highly accurate and stable voltage reference. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a precise reference voltage for accurate signal conversion.
• Digital-to-Analog Converters (DACs): Ensures consistent output levels by offering a stable reference.
• Power Management Integrated Circuits (PMICs): Serves as a reliable reference for voltage regulation and monitoring.
• Battery Management Systems: Ensures accurate voltage monitoring and control for battery health and safety.
• Precision Measurement Equipment: Offers a stable reference for accurate measurements in laboratory and industrial settings.

Conclusion of LM4140BCM-1.0

The LM4140BCM-1.0 from Texas Instruments is a highly accurate and stable voltage reference IC, designed to meet the stringent requirements of precision power management applications. Its ±0.1% tolerance, low supply current, and wide input voltage range make it an ideal choice for a variety of systems, from ADCs and DACs to battery management and precision measurement equipment. The device's surface mount compatibility and moisture sensitivity level of 1 ensure it can be easily integrated into modern, high-density PCB designs without compromising reliability. Despite its obsolete status, the LM4140BCM-1.0 remains a valuable component for applications where precision and stability are paramount.