AN IMPROVED TAIL CURRENT SOURCE FOR LOW-VOLTAGE APPLICATIONS

Authors
YOU F EMBABI SHK DUQUECARRILLO JF SANCHEZSINENCIO E
Citation
F. You et al., AN IMPROVED TAIL CURRENT SOURCE FOR LOW-VOLTAGE APPLICATIONS, IEEE journal of solid-state circuits, 32(8), 1997, pp. 1173-1180
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE journal of solid-state circuits → ACNP
ISSN journal
00189200
Volume
32
Issue
8
Year of publication
1997
Pages
1173 - 1180
Database
ISI
SICI code
0018-9200(1997)32:8<1173:AITCSF>2.0.ZU;2-O
Abstract
A new current source for low-voltage applications is proposed. This cu rrent source is well suited for biasing differential pairs and source followers. Measured compliance voltage is slightly smaller than that o f a single transistor. Its output resistance is a factor of 25 larger than that of a single transistor current source and was measured to be 8 M Omega. The use of the new current source improves the common-mode input range and the common-mode rejection ratio of fully balanced and single-ended differential amplifiers.