REF6141IDGKT Integrated Circuits (ICs)

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The Voltage Reference is a type of PMIC (Power Management Integrated Circuit) technology. It serves as a basic element of power regulation and is used in a variety of applications. The REF6141IDGKT is one such Voltage Reference, customized for specific applications. This section will explore the application field and working principle of the REF6141IDGKT Voltage Reference.

The REF6141IDGKT is designed for precision reference applications in terms of both temperature and long-term stability. This Voltage Reference is versatile enough to be used for industrial, automotive, audio/video, wearable, and other applications. The device also features output current capability up to 350mA, over-voltage protection, soft-start, and a 9-bit digital monitoring interface, enabling a wide range of functionality.

The REF6141IDGKT is an internally compensated voltage reference that can operate over the 0°C to 85°C temperature range, with a minimum initial accuracy of 1.25%. It provides a low-noise, low-dropout, and low-drift voltage reference for multiple voltage range applications. The REF6141IDGKT is composed of a voltage reference circuit with a dual-gate MOSFET in the feedback loop that provides precise reference voltage control with low noise and low power consumption.

A temperature-compensated voltage reference has a reference terminal, a sensing terminal, and an output terminal. The sensing terminal senses the difference between the reference and the supply voltages. Alternatively, it senses the voltage present across the device. The output terminal is connected to the reference voltage and the sensing terminal is connected to the output terminal such that any changes in the inputs cause a proportional change in the output.

The REF6141IDGKT Voltage Reference is composed of a constant current source and the output voltage reference circuit. The constant current source has a variable resistor to adjust the value of the reference current. The constant current source is used to keep the voltage reference terminals at the same current. This ensures that the voltage reference temperature is always the same, as any temperature drift is compensated for by the adjusted current.

The output voltage reference circuit is constructed with an amplifier and a voltage reference. The voltage reference is connected to the output end and the amplifier\'s output is connected to the reference terminal. When the voltage reference is higher than the supply voltage, the amplifier regulates the output voltage to the reference voltage. When the voltage reference is lower than the supply voltage, the amplifier reduces the output voltage to the reference voltage.

The output voltage reference circuit utilizes internal feedback to regulate the output voltage and includes a thermally compensated voltage divider. This voltage divider monitors the temperature sensitive characteristics of the device and automatically adjusts the output voltage to compensate for any thermal errors. The output voltage reference circuit also includes a parameterizable P-type trim capacitor to provide additional temperature compensation.

The thermally compensated voltage divider helps reduce the power consumption and increases precision. The output voltage reference circuit also includes a low dropout regulator which prevents the output voltage from exceeding the maximum voltage level. The REF6141IDGKT Voltage Reference integrates over-voltage protection, soft start, and a 9-bit digital monitoring interface for additional protection.

The REF6141IDGKT is therefore an ideal voltage reference for precision reference applications in terms of both temperature and long-term stability. This voltage reference is designed to provide a low-noise, low-dropout, and low-drift voltage reference for multiple voltage range applications. With the integrated over-voltage protection, soft-start, and 9-bit digital monitoring interface, the REF6141IDGKT provides complete protection and stability for industrial, automotive, audio/video, wearable, and other precision applications.

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