Research On Temperature Compensation Technology in The Field of Band-gap Reference

With the rapid development and wide application of analog integrated circuits, the development and application of band-gap reference circuits, as one of the most basic analog integrated circuits, has been attracting much attention. The band-gap reference circuit has the advantages of high accuracy, good stability, and high reliability. The temperature compensation technology has a significant effect in improving the accuracy, stability and reliability of the band-gap reference. However, the generation of a more stable reference voltage through temperature compensation technology is still one of the key research topics at present. In this paper, In this paper, the temperature compensation technology is studied on the principle and structure of the band gap source, and the concept and related theories of the first, second and higher order temperature compensation technologies are analyzed, showing how the temperature stability of the band gap source is improved and applied to a wider temperature range. Starting from the changing angle of different order temperature compensation technology, the development of temperature compensation technology of band-gap reference neighborhood is promoted.