Texas Instruments

LM4128AMF-4.1

LM4128AMF-4.1 Description

The LM4128AMF-4.1 is a precision voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 4.096V with a tolerance of ±0.1%. This device is part of the LM4128 series, known for its high accuracy and stability. It features a low supply current of 100µA, making it suitable for low-power applications. The LM4128AMF-4.1 operates within an input voltage range of 4.496V to 5.5V and can provide an output current up to 20 mA. The device is packaged in a Surface Mount SOT23-5 format, which is ideal for compact and space-constrained designs. The temperature coefficient of 75ppm/°C ensures minimal drift over a wide temperature range, enhancing its reliability in various operating conditions. Despite being marked as obsolete, the LM4128AMF-4.1 remains a viable option for applications requiring high-precision voltage references.

LM4128AMF-4.1 Features

• Fixed Output Voltage: The LM4128AMF-4.1 provides a stable output voltage of 4.096V, ideal for applications requiring precise voltage levels.
• High Accuracy: With a tolerance of ±0.1%, this device ensures high precision in voltage regulation, minimizing errors in sensitive circuits.
• Low Supply Current: Consuming only 100µA, the LM4128AMF-4.1 is highly efficient, making it suitable for battery-powered and low-power applications.
• Wide Input Voltage Range: The device operates within an input voltage range of 4.496V to 5.5V, providing flexibility in power supply requirements.
• High Output Current Capability: Capable of delivering up to 20 mA, the LM4128AMF-4.1 can support multiple loads or high-current applications.
• Surface Mount Packaging: The SOT23-5 package is compact and suitable for surface mount technology, facilitating integration into modern PCB designs.
• Low Temperature Coefficient: The 75ppm/°C temperature coefficient ensures minimal voltage drift over temperature variations, enhancing long-term stability.
• Compliance and Status: The LM4128AMF-4.1 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM4128AMF-4.1 Applications

The LM4128AMF-4.1 is well-suited for a variety of applications that require a stable and precise voltage reference. Its high accuracy and low supply current make it ideal for:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate ADC conversions.
• Digital-to-Analog Converters (DACs): Ensures precise output voltage levels for DAC applications.
• Precision Measurement Equipment: Used in instruments requiring high accuracy and stability.
• Battery Management Systems: Offers a reliable reference for battery voltage monitoring and control.
• Medical Devices: Suitable for applications where precision and reliability are critical.
• Industrial Control Systems: Provides a stable reference for sensors and control circuits.

Conclusion of LM4128AMF-4.1

The LM4128AMF-4.1 is a high-precision voltage reference IC that offers exceptional performance and reliability. Its ±0.1% tolerance and low temperature coefficient make it a standout choice for applications requiring high accuracy. The low supply current and wide input voltage range further enhance its versatility, making it suitable for a broad range of applications, from precision measurement equipment to battery management systems. Despite being marked as obsolete, the LM4128AMF-4.1 remains a reliable option for engineers seeking a high-performance voltage reference in compact and low-power designs.