REF3318AIDCKR Integrated Circuits (ICs)

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The RF3318AIDCKR is a high performance, low cost precision shunt voltage reference from Pmic. With a maximum operating temperature of 125°C and its extremely low temperature coefficient of voltage (TCV) of only 11 ppm/°C, this device is suitable for a wide range of applications, including portable communication devices and mixed signal interface applications.

At the heart of this device is its proprietary Reference-Free Shunt Resistive Circuit (RFRSRC). This circuit provides a reliable, accurate and low temperature drift voltage reference with a low quiescent current of only 12.5uA. The continuous output voltage range is from 2.7V to 3.6V, with a dynamic range up to 4.7V.

In addition to its superior dynamic performance, the RF3318AIDCKR also offers high precision performance, with a typical drift of only 10ppm/°C. This provides excellent power efficiency in applications such as metering, instrumentation, and medical devices. Additionally, the device is able to maintain its output voltage in the absence of input power, making it ideal for applications requiring ultra-low-power operation.

The RF3318AIDCKR has integrated overload protection, making it suitable for a wide range of precision voltage references. It is also able to tolerate large capacitive load transients, making it suitable for a variety of dynamic load conditions. Additionally, the device features very low input bias current, allowing for accurate and linear voltage control.

The working principle of the RF3318AIDCKR is based on a thermal feedback principle. When the temperature of the environment increases, the guaranteed value of the voltage reference remains unchanged and requires more current to offset the thermal effects. Conversely, when the temperature of the environment decreases, the RF3318AIDCKR consumes less power and still maintains the reference voltage. This mechanism ensures that the voltage output is always within the specified range as the temperature of the environment varies, making it ideal for reliable, accurate and low-power voltage reference applications.

The RF3318AIDCKR can be used in a wide range of applications, such as portable communication devices, metering equipment and medical equipment. The device can be used to accurately monitor and control voltage references, providing the precision required by these applications. The low quiescent current and improved load transient response of the device make it suitable for a range of portable applications, where power savings and efficient operation are key.

Overall, the RF3318AIDCKR is a high performance, low cost precision shunt voltage reference, which is suitable for many different applications. Its excellent dynamic performance, low temperature coefficient of voltage, and integrated overload protection make it a reliable, accurate and low power voltage reference for a variety of applications, from portable communications to instrumentation.

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