REF198GRUZ

Noise - 0.1Hz to 10Hz:	40µVp-p
Base Part Number:	REF198
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Supply:	45µA
Voltage - Input:	4.5 V ~ 15 V
Noise - 10Hz to 10kHz:	--
Series:	REF19
Temperature Coefficient:	25ppm/°C
Tolerance:	±0.24%
Current - Output:	30mA
Voltage - Output (Min/Fixed):	4.096V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tube

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Introduction

REF198GRUZ is an integrated voltage reference IC with uses in various applications. It offers excellent precision and long-term stability with low noise performance, making it suitable for precision analog circuitry. The device works in a wide range of temperature ranges, making it an ideal option for a variety of applications. This article provides an overview of the voltage reference IC and its application fields and working principles.

PMIC - Voltage Reference

A power management integrated circuit (PMIC) is a specialized integrated circuit that gives applications high precision control over power output and other functions related to a specific power management system. Voltage references are special types of PMICs that are used to provide a stable voltage reference point for measuring and controlling related voltage levels.Voltage references come in two varieties: Absolute references (are reference voltages that are inherently stable over temperature, time and process variation) and tracked references (track a changeable, dynamic reference which varies with temperature, time and process variation)REF198GRUZ is a precision, low-power, integrated voltage reference IC. It is designed for low voltage and low noise performance, making it well suited for precision analog circuitry, such as voltage monitoring and control. The device operates from +2.7V to +12.6V supply and offers excellent performance over a wide temperature range, from -40°C to +125°C. The REF198GRUZ IC offers low output offset voltage, low long-term stability, and low noise performance, making it ideal for use in micropower precision instrumentation. It is designed for operation with a minimum of two external resistors, resulting in a high accuracy voltage reference.

Application Field and Working Principle

REF198GRUZ is suitable for a variety of applications, ranging from microprocessor-based systems to voltage monitoring and control, motor control, switched-mode power supplies, and telecommunication systems. It is also commonly used in automotive applications, such as in engine-control systems, power management, and power-supply circuits.The reference voltage of REF198GRUZ is internally trimmed and can be adjusted by an external resistor. It has a wide voltage range from 2.5V to 12V and is able to drive loads up to 1.2mA. The reference voltage is adjustable from 1.2V to 12V with an external resistor. The device also has an adjustable hysteresis voltage that can be set by an external resistors. Hysteresis voltage prevents the reference input from jumping up and down in small increments, making the reference output more stable and providing better thermal regulation performance. The REF198GRUZ operates from a certain supply voltage and is powered by a separate bypass capacitor. It is able to withstand small power-supply glitches, limited overvoltage failures, and short duration of both positive and negative voltage pulses. As such, it offers superior performance in critical system applications.

Conclusion

REF198GRUZ is a precision, low-power integrated voltage reference IC designed for a variety of applications. It offers excellent precision and long-term stability with low noise performance, making it ideal for a variety of applications, including microprocessor-based systems, voltage monitoring and control, switched-mode power supplies, and telecommunication systems. The device operates from an external resistor and is able to stand up to short duration of both positive and negative voltage pulses.

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