REF3133AIDBZR Integrated Circuits (ICs)

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Voltage references are an important part of power management and integrated circuit (PMIC) designs. REF3133AIDBZR is an adjustable voltage reference from Analog Devices (ADI) that is suitable for a variety of circuit designs. This voltage reference offers exceptional accuracy, flexibility and low power dissipation. It includes an internal oscillator, temperature sensor, oscillator disable feature and adjustable reference voltage.

The internal oscillator of the REF3133AIDBZR can be disabled and enabled with the Oscillator Disable SEL pin. If the oscillator is disabled, the reference output is kept constant regardless of temperature, supply and load variations. This greatly simplifies the system design and increases stability. The REF3133AIDBZR oscillator defines the voltage reference output frequency, which is also available as an output signal (ADC). When enabled, the output voltage is temperature compensated, ensuring that the voltage reference accuracy is maintained under varying environmental conditions.

The temperature sensor of the REF3133AIDBZR is an integrated component that is used to measure the ambient temperature and provide the necessary information to the temperature compensation logic. The temperature compensation logic is used to adjust the output voltage of the voltage reference to maintain accuracy, despite the change in temperature. The voltage reference output can also be adjusted via the Integrated Application Specific Circuit (IASP), which is a one-time programmable controller. This means that the REF3133AIDBZR is available in a range of applications, with adjustable reference voltages.

The REF3133AIDBZR is a low power voltage reference, with a power dissipation of only 30 uA. This makes it suitable for applications where low power consumption is a priority. It is available in both 4-pin SOIC (Small Outline Integrated Circuit) and 8-pin TSSOP (Thin Shrink Small Outline Package) packages, with a power supply range of 1.7 to 5.5 V. The voltage reference output accuracy is excellent, with 2 ppm/°C temperature coefficient and 0.3% tolerance. It is capable of producing an output voltage range of 2.0 to 5.5 V.

The REF3133AIDBZR is an excellent choice for voltage reference applications in a variety of designs. It offers excellent accuracy, flexibility and low power dissipation, making it suitable for a wide range of applications. With the ability to adjust the reference voltage using the IASP, it is possible to design systems that are tailored to specific application requirements. The integrated oscillator and temperature sensor also provide stability, ensuring that the reference voltage remains accurate and reliable under varying environmental conditions.

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