REF3333AIDBZRG4

Noise - 0.1Hz to 10Hz:	92µVp-p
Base Part Number:	REF3333
Supplier Device Package:	SOT-23-3
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Current - Supply:	8.5µA
Voltage - Input:	3.5 V ~ 5.5 V
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	30ppm/°C
Tolerance:	±0.15%
Current - Output:	5mA
Voltage - Output (Min/Fixed):	3.3V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

A voltage reference is one of the most essential components in an electrical circuit. It is a device used to maintain a constant voltage level within a circuit. REF3333AIDBZRG4 is a high accuracy, low-noise digital voltage reference module which belongs to PMICs (Power Management Integrated Circuits). This article will discuss its application field and working principle.

Application Field

REF3333AIDBZRG4 voltage reference module is used for applications requiring precision and high accuracy such as remote sensors for automotive, communications, industrial, medical, military and aerospace applications. In automotive industry, REF3333AIDBZRG4 can be used to secure the stability of voltage while reading sensor information and converting it into digital signals. In communication equipment, this module can improve the precision of processing data transmission to ensure uninterrupted communication.In medical industry, the module can be used in medical equipment, such as medical imaging systems, medical record systems, medical laboratory equipment, and hospital bedside monitors.In military and aerospace fields, the module can ensure the constant voltage level for critical operations in the operation systems.

Working Principle

REF3333AIDBZRG4 operates with a precision reference voltage that is derived from a sub-voltage system. The sub-voltage supplies the reference sources to the voltage regulator, which in turn stabilizes the output voltage. The output voltage is regulated to operate within a specified range.Within REF3333AIDBZRG4 voltage reference module, there is a voltage divider formed by a fixed resistance and an adjustable resistor. The adjustable resistor is known as a trimming potentiometer. This potentiometer allows the user to adjust the voltage on the output side of the voltage divider during the design process to achieve the desired output voltage. The output voltage usually needs to match the most common and widely supported voltages, such as 3.3V, 5V or 12V. These voltages are normally used by the ICs and radios in the circuit, so a stable and accurate voltage reference is essential for such systems.

Conclusion

In conclusion, REF3333AIDBZRG4 voltage reference module belongs to PMICs and is widely used in automobile, medical, communication and aerospace industry. This module works on a precision reference voltage which is supplied from a sub-voltage system and its voltage can be adjusted with a trimming potentiometer to match the most common voltage levels. It is a reliable and accurate device for creating a stable output voltage for the system.

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