Auto-zero differential difference amplifier

Authors
Kayal, M Randjelovic, Z
Citation
M. Kayal et Z. Randjelovic, Auto-zero differential difference amplifier, ELECTR LETT, 36(8), 2000, pp. 695-696
Citations number
4
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
36
Issue
8
Year of publication
2000
Pages
695 - 696
Database
ISI
SICI code
0013-5194(20000413)36:8<695:ADDA>2.0.ZU;2-G
Abstract
The differential difference amplifier (DDA) is considered as a versatile bu ilding block for the analogue processing of floating voltages. An automatic offset compensation scheme is proposed for the DDA structure. A digital su ccessive approximation algorithm is implemented to reduce the offset input voltages. The proposed circuit has been fabricated and tested in a 0.8 mu m CMOS technology.