LM4128AMF-3.3/NOPB

The LM4128AMF-3.3/NOPB is a precision voltage reference integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a stable reference voltage of 3.3 volts, making it suitable for a variety of applications, including analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other precision measurement systems.

Key Features:

1. Voltage Reference: The LM4128AMF-3.3/NOPB outputs a fixed voltage of 3.3V with a high degree of accuracy and stability, typically with a tolerance of ±0.5% at room temperature.

2. Temperature Coefficient: The device has a low temperature coefficient, typically around 10 ppm/°C, which ensures that the output voltage remains stable over a wide temperature range, enhancing its reliability in varying environmental conditions.

3. Low Noise: The LM4128AMF-3.3/NOPB features low output noise, which is critical for applications requiring high precision and minimal interference.

4. Wide Operating Range: It operates over a wide input voltage range, typically from 4.5V to 15V, allowing it to be used in various power supply configurations.

5. Low Output Impedance: The IC has low output impedance, which helps maintain a stable output voltage even under varying load conditions.

6. Power Supply Rejection Ratio (PSRR): The device exhibits excellent PSRR, ensuring that variations in the input voltage do not significantly affect the output voltage.

7. Package Type: The LM4128AMF-3.3/NOPB is available in a small form factor, typically in an 8-pin MSOP (Micro Small Outline Package) or similar package, making it suitable for space-constrained applications.

8. Applications: This voltage reference is ideal for use in precision measurement systems, instrumentation, data acquisition systems, and any application requiring a stable reference voltage.

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: 3.3V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 10 ppm/°C
• Input Voltage Range: 4.5V to 15V
• Output Noise: Low noise performance
• Operating Temperature Range: Typically from -40°C to +125°C

Conclusion:

The LM4128AMF-3.3/NOPB from Texas Instruments is a highly reliable and precise voltage reference suitable for a wide range of electronic applications. Its combination of low noise, excellent temperature stability, and compact packaging makes it an excellent choice for engineers looking to implement a stable voltage reference in their designs.