The LM4128AMF-3.3 is a precision voltage reference manufactured by National Semiconductor (now Texas Instruments). It provides a stable and accurate 3.3V output voltage, making it ideal for applications requiring a reliable voltage reference. This voltage reference is commonly used in data acquisition systems, precision instruments, and control circuits.

Applications

• Data Acquisition Systems: Used as a reference voltage for analog-to-digital converters (ADCs).
• Precision Instruments: Employed in instruments requiring accurate and stable voltage references.
• Control Circuits: Used in control systems for precise voltage regulation.
• Battery Management Systems: Found in battery-powered devices for accurate voltage monitoring.
• Sensor Excitation: Used to provide a stable voltage for sensor excitation.

Features

• Precision Voltage Reference: Provides a highly accurate and stable 3.3V output.
• Low Temperature Coefficient: Maintains stable output voltage over a wide temperature range.
• Low Dropout Voltage: Operates with a low input-to-output voltage differential.
• Low Quiescent Current: Minimizes power consumption.
• Small Package: Available in a small SOT-23 package for space-constrained applications.

Benefits

• Accurate Voltage Reference: Provides a reliable and precise voltage reference for critical applications.
• Stable Performance: Maintains stable output voltage over temperature variations.
• Energy Efficient: Low quiescent current extends battery life in portable devices.
• Space Saving: Small package allows for compact circuit designs.
• Reliable Operation: Ensures stable and dependable voltage regulation.

Additional Details

The LM4128AMF-3.3 comes in a SOT-23 package. It requires a minimum input voltage slightly above the output voltage (3.3V) for proper regulation. The temperature coefficient is typically very low, ensuring minimal voltage drift with temperature changes. The output voltage accuracy is specified in the datasheet, often around ±0.1%. This voltage reference is commonly used in industrial, automotive, and consumer electronics applications. Datasheets provide comprehensive information on electrical characteristics, thermal properties, and application circuits. The operating temperature range is typically -40°C to +125°C.