LM4040CIX3-4.1+T Integrated Circuits (ICs)

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The LM4040CIX3-4.1+T is a precision micro-power voltage reference from Texas Instruments. It is part of the TI LM4040CIX family of voltage references, which is categorized under Power Management and Interface (PMIC - Voltage Reference). The LM4040CIX3-4.1+T is available in an industry-standard SOT23-5 package and is designed for applications requiring precision voltage regulation below 1 mW with an output accuracy of ±3 mV (maximum). The device features an external trim that can be used to set the desired voltage output. The LM4040CIX3-4.1+T is ideal for low-voltage applications such as battery-powered devices.

The LM4040CIX3-4.1+T is based on the traditional bandgap design, which uses an external temperature-varying signal to generate an output voltage. The device contains two main components, a resistive element, and a voltage-controlled element. The resistive element is an N-type transistor with a base-emitter junction that has a temperature coefficient which is typically negative, meaning that its resistance will increase as temperature increases. This is coupled with a voltage-controlled element, called the operational amplifier (Op-Amp), which is used to rectify the output of the resistive element. The amplification of the Op-Amp varies the output voltage such that it is proportional to temperature, meaning the output voltage will increase as temperature increases. Thus the temperature-varying signal is used to control the output voltage of the reference.

The LM4040CIX3-4.1+T is suitable for a range of applications that require precision voltage regulation. These include battery-powered devices, digital systems, analog systems, automotive systems, portable medical devices and wireless applications. Its small size, low power consumption and robust performance make it ideal for these applications. Additionally, its external trim capability, low noise, long-term drift and wide operating temperature range make the LM4040CIX3-4.1+T an excellent choice for any design requiring high accuracy and robust performance.

In summary, the LM4040CIX3-4.1+T is a precision voltage reference from Texas Instruments that is part of their LM4040CIX family of voltage references. It is designed for applications requiring precision voltage regulation below 1 mW with an output accuracy of ±3 mV (maximum). The device features an external trim that can be used to set the desired voltage output and is suitable for a range of applications including battery-powered devices, digital systems, analog systems, automotive systems, portable medical devices, and wireless applications. Its small size, low power consumption and robust performance make it an excellent choice for designs requiring high accuracy and robust performance.

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