LM4120AIM5-2.0/NOPB

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Reference Type:	Series
Output Type:	Fixed
Voltage - Output (Min/Fixed):	2.048V
Current - Output:	5mA
Tolerance:	±0.2%
Temperature Coefficient:	50ppm/°C
Noise - 0.1Hz to 10Hz:	20µVp-p
Noise - 10Hz to 10kHz:	36µVp-p
Voltage - Input:	2 V ~ 12 V
Current - Supply:	275µA
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	LM4120

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Introduction

The LM4120AIM5-2.0/NOPB is a programmable voltage reference IC that offers a low noise, low drift and low EMI design solution. This IC is suitable for use in a wide array of applications such as precision power supplies, supply regulation, current sources, and testing and measurement systems. It features low quiescent current and has a wide temperature operating range. With a simple package and interface, the LM4120AIM5-2.0/NOPB is an excellent option for device designers and engineers looking for a reliable voltage reference with superior performance.

PMIC – Voltage Reference

The LM4120AIM5-2.0/NOPB belongs to the family of Voltage Regulators and Standard Voltage References, which are known as PMICs (Power Management ICs). Voltage references provide a stable reference value for a variety of applications, such as regulation, precision control, and signal conditioning. A voltage reference, such as the LM4120AIM5-2.0/NOPB, consists of a precision, low-impedance reference cell and an amplifier. The reference cell is the heart of the device, which produces a stable and accurate output voltage. The amplifier amplifies the signal from the reference cell and isolates it from noise sources and load variations. This ensures that the output voltage is stable and accurately regulated.

Features of LM4120AIM5-2.0/NOPB

The LM4120AIM5-2.0/NOPB is a precision voltage reference that offers a variety of features, such as:

• Low output noise of only 5 μV P-P
• High output accuracy of 0.0100%
• High accuracy over temperature range of -40°C to 125°C
• Low quiescent current operation
• CMOS-compatible digital programming interface
• Programmable output voltage range: 2.5 V to 5.5 V
• Compatibility with High-Voltage devices, such as Automotive Applications

Applications

The LM4120AIM5-2.0/NOPB PMIC – Voltage Reference has a wide range of applications. It is ideal for precision power supplies, current sources, testing and measurement systems, and other power supply regulating applications. This IC can be used in automotive systems, industrial controllers, and consumer electronics, among other applications.

Working Principle

The LM4120AIM5-2.0/NOPB is based on a precision voltage reference cell combined with an amplifier and filter stages. The reference cell is designed to provide a highly accurate and stable output, which is further tailored by the amplifier and filter stages to meet different system design requirements. The main purpose of the amplifier and filter stages is to isolate the reference cell from external noise sources and any load variations. This ensures that the output voltage is correctly maintained, even when driving high load current or in noisy environments. The reference voltage can be digitally programmed via a CMOS-compatible programming interface. This allows the output voltage to be easily tailored to suit the specific requirements of the system. Additionally, the output voltage can be trimmed to compensate for any inaccuracies due to manufacturing tolerances.

Conclusion

The LM4120AIM5-2.0/NOPB PMIC – Voltage Reference is an excellent choice for device designers and engineers looking for a reliable voltage reference with superior performance. It offers a low output noise, high accuracy, and low quiescent current, which makes it well-suited for precision power supplies, current sources, and other applications requiring a highly stable output voltage. The voltage reference is easy to program, allowing for easy customization to fit specific system requirements.

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