AS431IBRTR-G1

The AS431IBRTR-G1 is a voltage reference device from Analog Devices. This device is classified as a PMIC (Power Management IC) voltage reference, and it is used to generate a precise, stable, low-temperature-coefficient voltage reference. The voltage reference output can be used for various applications including electronic instrumentation, test equipment, microprocessors, and a range of analog and digital circuitry.

The device is based on a single N-channel Zener diode. It provides a 4.096V output with a temperature coefficient of 100ppm/°C. This reference is ideal for applications where wide temperature stability is essential. The AS431IBRTR-G1 can also be used in instrumentation applications, where a low-temperature coefficient output is required.

The AS431IBRTR-G1 is designed to operate in the range 2.7V - 5.5V. It is designed to operate in the range 0-85°C. Internally, the device contains a Zener diode, a pre-tension resistor, and a precision operational amplifier. The on-board amplifier provides a high impedance buffer between the Zener diode and the output terminals, resulting in a low-noise, low-temperature coefficient reference output. Additionally, the device is stable over time and offers a good level of protection against unwanted electrical transients.

In terms of application fields, the AS431IBRTR-G1 can be used for a variety of purposes, such as in indoor and outdoor lighting, industrial and medical equipment, and automobile and avionics applications. Additionally, the device can be used for electronic instrumentation, test equipment, microprocessors, and a range of analog and digital circuitry. The device can also be used in extremely high-temperature environments due to its wide operating temperature range.

When it comes to its working principle, the AS431IBRTR-G1 works by using a Zener diode to generate a stable, low-temperature-coefficient output voltage. The device contains a precision operational amplifier which provides a high-impedance buffer between the Zener diode and output terminals, allowing for low noise and low-temperature coefficient outputs. This precision operational amplifier regulates the output voltage with a low-noise constant current which is generated by the pre-tension resistor. The output is then regulated by the Zener diode, providing a constant, low-temperature coefficient output voltage.

The AS431IBRTR-G1 is an ideal voltage reference device for applications requiring wide temperature stability and a low-temperature coefficient output. Its application fields include lighting, industrial and medical equipment, avionics, electronic instrumentation, microprocessors and more. The device works by using a Zener diode to generate a low-temperature coefficient output voltage, which is then regulated by a precision operational amplifier circuit. The device offers robust protection against electrical transients and is suitable for use in high-temperature environments.