LM4140BCM-2.5/NOPB PMIC - Источник опорного напряжения от Texas Instruments

The LM4140BCM-2.5/NOPB is a precision voltage reference integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a stable reference voltage of 2.5 volts with high accuracy and low temperature drift, making it suitable for a variety of applications in analog and digital circuits.

Key Features:

1. Voltage Reference: The LM4140BCM-2.5/NOPB outputs a fixed voltage of 2.5V, which is ideal for use in systems requiring a stable reference point.

2. Precision: This device boasts a high initial accuracy of ±0.5% at 25°C, ensuring that the output voltage remains close to the specified value under typical operating conditions.

3. Low Temperature Coefficient: The temperature coefficient is typically around 10 ppm/°C, which means that the output voltage changes very little with temperature variations, ensuring stability across a wide temperature range.

4. Low Noise: The LM4140 features low output noise, which is crucial for applications sensitive to voltage fluctuations, such as data acquisition systems and precision instrumentation.

5. Wide Operating Range: The device operates over a wide supply voltage range, typically from 4V to 30V, allowing it to be used in various circuit configurations.

6. Low Output Impedance: The LM4140 has low output impedance, which helps maintain a stable output voltage even when the load conditions change.

7. Package Type: The LM4140BCM-2.5/NOPB is available in a surface-mount package (SOT-23), which is compact and suitable for modern PCB designs where space is a premium.

8. No Lead (NOPB): The designation "NOPB" indicates that the part is free from lead, making it compliant with RoHS (Restriction of Hazardous Substances) standards, which is important for environmentally friendly manufacturing practices.

Applications:

• Data Acquisition Systems: Used as a reference voltage for ADCs (Analog-to-Digital Converters) to ensure accurate readings.
• Instrumentation: Provides a stable reference for precision measurement devices.
• Voltage Regulation: Can be used in conjunction with other components to create stable power supplies.
• Signal Conditioning: Acts as a reference for amplifiers and other signal processing circuits.

Electrical Characteristics:

• Input Voltage Range: 4V to 30V
• Output Voltage: 2.5V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 10 ppm/°C
• Output Noise: Low noise performance

Conclusion:

The LM4140BCM-2.5/NOPB from Texas Instruments is a highly reliable and precise voltage reference suitable for a wide range of electronic applications. Its combination of accuracy, low drift, and compact packaging makes it an excellent choice for engineers looking to enhance the performance of their designs.