LM4140ACM-1.2/NOPB PMIC - Источник опорного напряжения от Texas Instruments

The LM4140ACM-1.2/NOPB is a precision voltage reference integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a stable reference voltage of 1.2 volts with high accuracy and low temperature coefficient, making it suitable for a variety of applications in analog and digital circuits.

Key Features:

1. Voltage Reference: The LM4140ACM-1.2/NOPB outputs a fixed reference voltage of 1.2V, which is ideal for use in precision applications where a stable voltage is critical.

2. Precision: The 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 30 ppm/°C, which means that the output voltage changes very little with temperature variations, enhancing the reliability of the reference voltage in varying environmental conditions.

4. Low Noise: The LM4140ACM-1.2/NOPB features low output noise, which is essential for applications requiring high precision and minimal interference.

5. Wide Operating Range: The device can operate over a wide range of supply voltages, typically from 2.5V to 15V, allowing it to be used in various circuit designs.

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

7. Package Type: The LM4140ACM-1.2/NOPB is available in a compact surface-mount package (SOT-23), making it suitable for space-constrained applications.

8. Applications: This voltage reference is commonly used in data acquisition systems, precision analog-to-digital converters (ADCs), voltage regulation circuits, and other applications where a stable reference voltage is required.

9. RoHS Compliant: The "NOPB" designation indicates that the part is lead-free and compliant with the Restriction of Hazardous Substances (RoHS) directive, making it environmentally friendly.

Electrical Characteristics:

• Output Voltage: 1.2V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 30 ppm/°C
• Supply Voltage Range: 2.5V to 15V
• Output Noise: Low
• Output Impedance: Low

Conclusion:

The LM4140ACM-1.2/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 noise, and temperature stability makes it an excellent choice for designers looking to implement a dependable voltage reference in their circuits.