Temperature compensation technique for ring oscillators with tail current. Issue 13 (1st June 2016)

• Record Type: Journal Article
• Authors: Zhang, Shifeng; Li, Ailing; Han, Yan; Jie, Lu; Han, Xiaoxia; Cheung, Ray C.C.
• Is Part Of: Electronics letters. Volume 52:Issue 13(2016)
• Page Start: 1108
• Page End: 1110
• Publication Date: 2016-06-01
• Subjects: compensation -- oscillators -- constant current sources; temperature compensation technique -- ring oscillator -- tail current -- proportional to absolute temperature current source -- PTAT current source -- constant current source -- high frequency‐temperature stability; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.1039
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A temperature compensation technique for ring oscillators with tail current is proposed and analysed. Both proportional to absolute temperature (PTAT) current source and constant current source are implemented to serve as the tail current. The constant current provides most of current for oscillation, and the PTAT current is for compensating the oscillator's temperature variation. The ring oscillator achieves high frequency‐temperature stability.