LM4040CIM3X-5.0/NOPB

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Voltage reference devices are often used in different types of electronic applications, such as power supplies, voltage regulators, and analog-to-digital converters (ADCs). The LM4040CIM3X-5.0/NOPB is a three-pin, nano-power Voltage Reference Device manufactured by Texas Instruments (TI). This modern voltage reference device is capable of providing high linearity and accuracy at a very small physical size, making it suitable for use in portable and battery-powered applications.

Features of LM4040CIM3X-5.0/NOPB

The main features of the LM4040CIM3X-5.0/NOPB include:

• The output voltage can be adjusted in the range of 2.5 to 5.5 V
• Low output impedance makes it ideal for use in low power DC-DC conversion
• Linearity and accuracy of ± 2.5 mV at 5 V output voltage over the entire temperature range from -40 to +125°C.
• Very short propagation delay time of 18 µs max
• Power supply current of only 2 µA
• Very low quiescent current of 0.1 µA
• The device is provided in an 8-pin chip scale package

Application field and working principle

The LM4040CIM3X-5.0/NOPB voltage reference device can be used in applications such as portable communication equipment, data acquisition systems, low-power portable electronic instruments, and mobile computing systems. In these application fields, it can support a variety of data acquisition, analog-to-digital conversion, signal sequencing, and signal conditioning functions.

The LM4040CIM3X-5.0/NOPB voltage reference device works by exploiting the characteristic of a voltage divider. Internally, a precision bandgap reference is provided between two resistors in the resistor divider. This precision bandgap reference is used to provide a stable and accurate output reference voltage across the resistor divider. This output voltage is lower than the voltage of the external power source. The output voltage can be adjusted by changing the resistors on the resistor divider. Additionally, the output impedance of the device is very low, which ensures that the output voltage is stable even when the load current is changed.

Applications of LM4040CIM3X-5.0/NOPB

The LM4040CIM3X-5.0/NOPB voltage reference device is primarily used in analog-to-digital conversion (ADC) circuits. It can be used to provide a stable reference voltage for the ADC. Apart from this, the low output impedance and operation down to voltage levels makes it suitable for use in very low power DC-DC and SMPS applications.

The LM4040CIM3X-5.0/NOPB voltage reference device can also be used as a regulated voltage source for various types of sensors, such as charge-coupled devices (CCDs), micro-machined accelerometers, and velocity sensors. The device\'s low current consumption makes it suitable for use in battery powered applications.

The device is also well suited for use in embedded systems and other low power, portable applications that require a very low quiescent current.

Conclusion

The LM4040CIM3X-5.0/NOPB voltage reference device offers a robust, low power solution for applications requiring an accurate precision reference voltage. It is suitable for use in portable, battery powered applications and low power DC-DC converters. The device benefits from a low output impedance, adjustable output voltage, and low current consumption.

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