REF3133AQDBZRQ1 Integrated Circuits (ICs)

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Ref 3133AQDBZRQ1 is an integrated circuit which is categorized under PMIC-Voltage Reference. These are broadly used in various applications for the purpose of voltage reference. This IC is a monolithic low temperature coefficient precision bandgap reference which uses the well-known Zener technique for providing a very stable and precise voltage reference output. It is fabricated using a state-of-the-art complementary BiCMOS technology, which provides high leakage to ensure the lowest temperature coefficient.

Typically, the bandgap reference produces a well-defined dc output. The output of this reference is determined by the resistor network between the output pin and ground. One of the capacitor values is varied depending on the application, whereas the other is a fixed capacitor. The output voltage of Ref 3133AQDBZRQ1 increases as the temperature rises up to about 25-degrees Celsius and then decreases again at higher temperature. This feature ensures that the output voltage remains constant regardless of the temperature.

The Ref 3133AQDBZRQ1 is most widely used in applications such as power supply regulation, sampling and holding systems, integrated circuit testing, and voltage controlled oscillators. In addition, they are widely used in medical equipment, such as glucose monitoring, and laboratory instruments. This reference also finds its application in transducers, motor control systems, and automotive electronics. These integrated circuits also provide reference voltage circuits in op amps and comparators. In many consumer electronics, such as mobile phone chargers, they are used in order to measure the battery voltage. Additionally, the reference is used in combination with the reference resistor network to form the active electronic loads.

The working principle of Ref 3133AQDBZRQ1 consists of comparing the voltage of a voltage reference which is developed using a diode–transistor circuit with an external reference voltage. The output voltage of the IC is provided by an amplifier with low offset voltage and drift, a current buffer, and a load regulation circuit. The voltage reference is developed from the bipolar transistors which are fabricated using the complementary BiCMOS technology. The output voltage of the reference is established by the resistor network between the output pin and the ground. The output voltage then is compared with an external voltage and the difference is amplified through the amplifier. The current buffer then converts the small amplifier voltage into a larger current, which then is applied to the load regulation circuit.

In conclusion, the Ref 3133AQDBZRQ1 is an integrated circuit, categorized under PMIC - Voltage Reference, used in various applications such as power supply regulation, sampling and holding systems, integrated circuit testing and voltage controlled oscillators. It works by comparing the voltage of a voltage reference developed using a diode-transistor circuit with an external reference voltage and then current is converted into a larger current and applied to the load regulation circuit.

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