REF2933AIDBZR

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The REF2933AIDBZR voltage reference provides a precision two-terminal voltage reference with an output voltage accuracy of +/- 2.2 mV over a temperature range of -40°C to +85°C. The device is intended for use as a reference in digital signal processing (DSP) and precision low power voltage control applications. It\'s a type of PMIC (power management IC).

The REF2933AIDBZR voltage reference provides extremely low temperature coefficient, low drift and low noise, making it an ideal reference for high accuracy, low power applications. It can provide both 1.225V and 1.8V outputs with a maximum current of 1mA. It also has a 2.5V output that is adjustable from 2.400V to 2.800V with additional external resistors, allowing the output voltage to be tailored to the application requirements. The REF2933AIDBZR also has a very low leakage current of 1µA at room temperature and an input voltage range of 2.7V to 11.5V. This makes it suitable for analog and digital circuits operating from a variety of power sources.

The working principle of the voltage reference is based on a band-gap reference. The reference voltage is produced by a digital-to-analog conversion (DAC) using an array of precision resistors connected in series between an input voltage and ground. The output voltage is set by adjusting the ratio of the resistors in the array and then measuring the voltage at the midpoint of the array. The voltage reference also incorporates a precision amplifier to buffer the output voltage from the DAC and provide a low-impedance output.

The REF2933AIDBZR voltage reference is ideal for use in precision analog and digital circuits such as DACs, ADCs, operational amplifiers, and power supply converters where low noise and drift are critical. Additionally, it can be used in medical, telecommunications, and industrial controls.

In summary, the REF2933AID are precision two-terminal voltage reference ICs designed for use as a reference in digital signal processing (DSP) and precision low power voltage control applications. It is classified as a type of PMIC (Power Management IC) and is suitable for analog and digital circuits operating from a variety of power sources. By using a band-gap reference principle, it can provide both 1.225V and 1.8V outputs with a maximum current of 1mA as well as a 2.5V adjustable output. This voltage reference can be used in medical, telecommunications, and industrial applications where low noise and drift are critical.

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