DTMOS Technique for Low-Voltage Analog Circuits

Author

Maymandi-nejad, Mohammad ; Sachdev, Manoj

Author_Institution

Electr. Eng. Dept., Ferdowsi Univ. of Mashhad

Volume

14

Issue

10

fYear

2006

Firstpage

1151

Lastpage

1156

Abstract

In this paper, the application of dynamic threshold MOS (DTMOS) technique for low-voltage analog circuits is explored. The body terminal of PMOS transistors in bulk CMOS technology can be used as the forth terminal to enhance the performance of low-voltage analog circuits. To show the effectiveness of this technique, we have designed a continuous time common mode feedback (CMFB) circuit for a sub 1-V opamp and a new sub 1-V, 1-bit quantizer. A 0.8-V opamp with embedded CMFB and a 0.8-V, 1-bit quantizer for low-voltage DeltaSigma modulators are implemented in 0.18-mum CMOS technology. The simulation results as well as the measurement data of these blocks are presented in this paper

Keywords

CMOS analogue integrated circuits; circuit feedback; delta-sigma modulation; low-power electronics; operational amplifiers; 0.18 micron; 0.8 V; 1 V; 1 bit; DeltaSigma modulators; PMOS transistors; bulk CMOS technology; common mode feedback circuit; dynamic threshold MOS technique; low-voltage analog circuits; opamp; Analog circuits; Batteries; CMOS analog integrated circuits; CMOS technology; Digital circuits; Dynamic voltage scaling; Feedback circuits; Immune system; MOSFETs; Threshold voltage; 1-bit quantizer; CMOS analog circuits; comparator; dynamic threshold MOS (DTMOS); operational amplifier;

fLanguage

English

Journal_Title

Very Large Scale Integration (VLSI) Systems, IEEE Transactions on

Publisher

ieee

ISSN

1063-8210

Type

jour

DOI

10.1109/TVLSI.2006.884174

Filename

1715352