LM4140BCM-1.2

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The LM4140BCM-1.2 is a PMIC (Power Management Integrated Circuit) that provides adjustable precision voltage references. It is designed to adjust voltage references with tight tolerance and low power consumption, while maintaining a fairly linear output voltage characteristics. This makes the LM4140BCM-1.2 suitable for various applications, such as portable and precision monitoring systems that require a tight control of output voltages.

The LM4140BCM-1.2 provides adjustable voltage reference with tight tolerance and a linear output voltage characteristic over a wide temperature range. It features low power dissipation of as low as 1.2 mW/V, which makes it suitable for use in portable and precision monitoring systems where power dissipation is of utmost importance.

The LM4140BCM-1.2 integrates a special monitored amplifier and op-amp, both of which are built on a single chip. The monitored amplifier is used to achieve a good stability and a low drift performance, while the integrated op-amp provides independent voltage outputs. The op-amp also allows for a flexible operation in the presence of temperature changes. This makes the design of the LM4140BCM-1.2 suitable for various portable and precision applications.

In terms of its working principle, the LM4140BCM-1.2 comprises an internal voltage reference and a switchable, adjustable voltage reference. The voltage reference is combined with an internal resistor to create a basic voltage reference cell, and the adjustable voltage reference provides an adjustable output voltage by changing the ratio between the internal resistor and the external feedback resistor. The adjustable voltage reference is also used to adjust the reference voltage for the monitored amplifier and op-amp.

The LM4140BCM-1.2 also provides a temperature sensor that monitors the temperature and adjusts the output voltage accordingly. This temperature sensor is used to provide enhanced accuracy in various temperature ranges, making the LM4140BCM-1.2 suitable for high-precision and portable monitoring systems.

The LM4140BCM-1.2 also has wide input voltage ranges, as low as 2.3 V to 6.13 V, making it suitable for use in low power portable applications. The LM4140BCM-1.2 also features an integrated input voltage monitoring circuit that can detect a voltage noise and maintains the output voltage within 0.3 mV. This makes the LM4140BCM-1.2 suitable for use in noise sensitive applications as well.

The LM4140BCM-1.2 is a versatile precision voltage reference that is suitable for various portable and precision monitoring systems that require tight control of output voltages and improved accuracy in various temperature ranges. It is also suitable for low power applications, such as portable monitoring systems, as well as for noise sensitive applications.

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