LM4140CCMX-2.5

PMICs (Power Management Integrated Circuits) comprise a set of devices used to provide power to other electrical and electronic circuits. Voltage references are an important component of PMICs, serving to provide adjustable and/or fixed reference voltages for other devices. One of the voltage references commonly used in PMICs is the LM4140CCMX-2.5 – a precision low-noise voltage reference with an output voltage range of 2.5 V.

Features

The LM4140CCMX-2.5 has a number of features which make it a preferred choice for applications requiring precision voltage levels. It has an output voltage accuracy of ±10 mV, low output noise of 30 µVrms, and a high output voltage, of up to 2.5 V. Additionally, it has rated operational temperatures ranging from -40°C to 85°C, and is available in small 8-pin SOIC package.

Application Field

The LM4140CCMX-2.5 is commonly used in precision temperature and pressure measurement systems, as well as digital to analog converters, and analog to digital converters. It is also used in wide range of other systems, including high quality audio systems, and consumer electronics. As it is capable of providing low noise and high accuracy reference voltages, the LM4140CCMX-2.5 is often used in test and measurement equipment, such as oscilloscopes, as well as in high performance data processing systems.

Working Principle

At its core, the working of the LM4140CCMX-2.5 is based on a bandgap voltage reference (BGR). A BGR is an integrated circuit, which provides an output voltage that is independent of variations in temperature and supply voltage. The principle working of a BGR is as follows: Firstly, a stable voltage is generated within the BGR using a combination of two different diodes, which are connected in series. This voltage is then amplified using transistors, and the output voltage is generated after further amplification and feedback.

The voltage reference generated by the LM4140CCMX-2.5 is stable and accurate, and can be used in a wide range of applications. By using a combination of these features, the LM4140CCMX-2.5 can provide reliable, high accuracy voltage references for powering other circuits.