1 V CMOS current references for wide‐temperature range applications. Issue 17 (1st August 2013)

• Record Type: Journal Article
• Authors: Calvo, B.; Azcona, C.; Medrano, N.; Celma, S.
• Is Part Of: Electronics letters. Volume 49:Issue 17(2013)
• Page Start: 1061
• Page End: 1063
• Publication Date: 2013-08-01
• Subjects: CMOS integrated circuits -- compensation -- current mirrors -- power consumption; temperature drifts -- temperature‐dependent current mirror ratio -- cross‐coupled current mirrors -- low power consumption -- compact architectures -- low‐voltage micropower first‐order temperature‐compensated CMOS current references -- wide‐temperature range applications -- temperature ‐40 degC to 120 degC -- current 1 muA -- size 0.18 mum -- voltage 1 V; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.2050
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Two new low‐voltage micropower first‐order temperature‐compensated CMOS current references are presented. To achieve compact architectures able to operate under low voltage with low power consumption, the references are based on the simplest approach of cross‐coupled current mirrors, and compensation is obtained by introducing a temperature‐dependent current mirror ratio. Results for 0.18 µm CMOS implementations show that the proposed 1 μA references operate with supplies down to 1 V showing temperature drifts below 231 ppm/°C over a (from –40 to 120°C) range.