AD586BR

Noise - 0.1Hz to 10Hz:	4µVp-p
Base Part Number:	AD586
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Supply:	3mA
Voltage - Input:	10.8 V ~ 36 V
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	5ppm/°C
Tolerance:	±0.05%
Current - Output:	10mA
Voltage - Output (Min/Fixed):	5V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Obsolete
Packaging:	Tube

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AD586BR Application Field and Working Principle

The AD586BR is a voltage reference device designed to provide a reliable means to maintain the output voltage of systems and subsystems that require constant suppression of fluctuations in input voltage, temperature and other environmental factors.

This precision voltage reference device is classified as a PMIC (power management integrated circuit) – Voltage reference which falls under the specialized category of integrated circuits (IC) used in power management.

AD586BR is a three terminal integrated circuit voltage regulator, which provides a reference voltage of 10V ±1.1% over a broad range of temperatures with a maximum temperature coefficient of 20 ppm/°C.

Structure of AD586BR

The AD586BR consists of a monolithic integrated circuit and external discrete components - the resistor (R1) and capacitor (C1).

The monolithic IC consists of two distinct parts a) an adjustable bandgap reference, or core, and b) an output amplifier.

The reference core is designed to produce a reference voltage of 10V with a high degree of accuracy and stability over a broad range of temperatures.

The output amplifier is designed to minimize the effect of noise from the output signal. It is also designed to be thermally coupled to the reference core, providing temperature compensation for the device.

Working Principle

The AD586BR can be operated in either linear or switch mode, as determined by the application.

Linear Mode: In this mode, the output voltage is determined by the external resistive divider network and temperature coefficient of the reference voltage. In this case, R1 and C1 are used to set the reference voltage and temperature coefficient, respectively.

Switched Mode: In this mode, the output voltage is determined by an external switching circuit, which switches the reference voltage on or off. This allows for faster response times, as well as lower power consumption.

The AD586BR has improved accuracy over earlier voltage references and can operate at supply voltages from 4V to 20V.

Applications

AD586BR are popularly used in a broad range of applications, either to generate a stable reference voltage or to hold a voltage to a precise value under varying conditions. Some common applications include:

• Systems requiring low voltage and temperature variation
• Systems requiring stable reference voltage over long periods of time
• Applications requiring a quick response to changing conditions
• Battery-powered devices

Conclusion

The AD586BR is an excellent choice for stable precision voltage over a wide range of temperatures and conditions. With its simple structure and wide variety of uses, this PMIC voltage reference is ideal for a wide variety of applications.

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