ADR520BKSZ-REEL7

Noise - 0.1Hz to 10Hz:	14µVp-p
Base Part Number:	ADR520
Supplier Device Package:	SC-70-3
Package / Case:	SC-70, SOT-323
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	50µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	40ppm/°C
Tolerance:	±0.2%
Current - Output:	15mA
Voltage - Output (Min/Fixed):	2.048V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Obsolete
Packaging:	Cut Tape (CT)

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PMIC - Voltage Reference

The ADR520BKSZ-REEL7 is a voltage reference that is part of the Analog Devices Inc. ADR5000 family of precision industrial references. The reference is designed to meet the demands of precision power supply applications in high-power, industrial and automotive markets. The reference features an integrated voltage regulator, voltage reference and temperature sensing circuit.

Application Field

The ADR520BKSZ-REEL7 is designed to meet the requirements of high power, industrial, and automotive applications. It is a three-segment voltage reference that can be used in a wide variety of switching and linear power supplies, including power-factor-correction (PFC) systems, resonant conversion modules, automotive HVAC systems, and voltage regulation modules. It is also suitable for applications such as industrial power supplies, voltage regulators, and DC/DC converters.

Working Principle

The ADR520BKSZ-REEL7 voltage reference is based on a series of Vref (reference voltage) pins which form a ladder network of reference voltages. The ladder network provides a precise positive output which is directly proportional to the number of Vref pins used. A temperature sensing element is used to automatically adjust the temperature of the reference circuit, ensuring a highly stable and precise output voltage over a wide operating temperature range. The Vref pins are further protected by an internal output current monitor, which provides additional safety when the reference circuit is in use. The reference also incorporates a voltage regulator which can provide precise and stable power to the reference circuit. The adjustment range of the reference voltage is precise, allowing the user to set the output voltage to the desired values with minimal effort.In addition, the voltage reference includes a fault monitor for detecting when the reference voltage deviates outside of the required precision range. The fault monitor provides additional protection when the reference is used in high-power applications.

Conclusion

The ADR520BKSZ-REEL7 is a precision industrial voltage reference designed to meet the demands of high-power, industrial, and automotive applications. It incorporates an integrated voltage regulator, voltage reference, and temperature sensing circuit to ensure precise and stable output voltages over a wide operating temperature range. The reference is ideal for use in switching and linear power supplies, including power-factor-correction (PFC) systems, resonant conversion modules, automotive HVAC systems, and voltage regulation modules.

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