TL1431CZT

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The TL1431CZT is a voltage reference device manufactured by Texas Instruments. It consists of two independent temperature-compensated reference (TCR) circuits that are designed to provide a precise output voltage level in response to changes in temperature, supply voltage and load conditions. The device is used in industrial, automotive and telecommunications applications. Its sub-micron processing and laser-trimmed parameters enable reference tolerances of less than 0.1%. It is specifically designed for low-noise analog circuits.

The TL1431CZT is part of the PMIC - Voltage Reference product family. This type of integrated circuit functions as a reference voltage source in a voltage regulator circuit and is used to provide a stable reference voltage against which other voltage signals are compared. A voltage reference is required to ensure that the output voltage remains stable and to eliminate errors in the circuit caused by variations in supply or load conditions. Voltage references are also used in temperature compensation circuits, where the reference voltage can be adjusted in order to account for rapidly changing temperature.

The TL1431CZT is an integrated, high-precision bipolar voltage reference with a ±3.3V/3.3V output voltage range. It has three pins to enable connection to the supply voltage and ground. The REF and OUT- pins provide the negative (-) and the positive (+) references respectively, with the TH pin providing output temperature compensation. This device offers maximum output voltage accuracy of 0.1%, combined with low temperature coefficient of 0.05%/°C and good load regulation. As a 3.3V voltage reference, it is designed to operate from a single 5V supply.

The TL1431CZT TCR circuit has a wide dynamic range, allowing it to be used in a variety of industrial, automotive and telecommunications applications, such as: precision DAC linearization and sensor bridges, audio and power monitoring, wide dynamic range amplifier feedback loops, current measurement and sensing using PWM, low-power circuit design, negative voltage references, and voltage shunt regulators.

The TL1431CZT provides two temperature-compensated references (TCR) circuits with a 0.1% accuracy. These circuits consist of a low-noise amplifier, a compensation amplifier and a temperature-compensated reference (TCR) voltage source.The low-noise amplifier is designed to detect small changes in output voltage that may occur due to supply and load variations, and provides a low-noise output to drive the compensation amplifier. The compensation amplifier eliminates errors in the output voltage due to supply and load variations. The TCR circuit provides a precise, temperature-compensated reference voltage which is used to adjust the output voltage level. This ensures that the output voltage remains stable and constant under differentload and temperature conditions.

The TL1431CZT is a high-precision, 3.3V voltage reference with a ±3.3V/3.3V output voltage range. Its built-in sub-micron processing and laser-trimmed parameters provide reference tolerances of 0.1%, combined with low temperature coefficient of 0.05%/°C and good load regulation. The device is designed for applications requiring low noise, such as audio and power monitoring circuits, sensor bridges, wide dynamic range amplifier feedback loops, low-power circuits, voltage shunt regulators and more. Its wide dynamic range and temperature compensation features make it suitable for a variety of industrial, automotive and telecommunications applications.

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