REF02DSA+T

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REF02DSA+T is a precision voltage reference from Texas Instruments. It belongs to the PMIC - Voltage Reference category as it is used to generate a stable reference voltage. It is a dual reference, with each reference capable of sourcing up to 8 mA. The different reference voltages are selected using a logic signal.

REF02DSA+T features a temperature stable design, which means the output voltage remains consistent over the course of its operation. The internal circuitry compensates for the drift caused by variations in temperature. This makes it suitable for precision voltage references in various applications, mainly related to power supply regulation, AD conversion and measurement, and sensor conditioning.

The working principle of REF02DSA+T is based on the use of a special amplifier with a built-in PNP transistor. The transistor works in a feedback loop, providing a high gain and ensuring a stable output voltage. The voltage output is set by two resistors, one for each reference. The reference is connected to ground and the output is connected to the common node, creating an automatic voltage regulator.

The advantages of REF02DSA+T compared to other references are the low output impedance, high accuracy and low power consumption. The output impedance is lower than 1 ohm, making it ideal for applications where power supply noise needs to be kept to a minimum. The accuracy of this reference is typically less than 0.002% at 0°C and can reach 0.005% at 25°C. Finally, the power consumption is as low as 10 mW.

REF02DSA+T is an ideal choice for applications where high accuracy is needed. It is suitable for a wide range of applications, such as industrial instrumentation, process control, motor control and automotive. This reference can be used in both low voltage and high voltage applications, making it a versatile and reliable solution for many applications.

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