Title :
DTMOS Technique for Low-Voltage Analog Circuits
Author :
Maymandi-nejad, Mohammad ; Sachdev, Manoj
Author_Institution :
Electr. Eng. Dept., Ferdowsi Univ. of Mashhad
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;
Journal_Title :
Very Large Scale Integration (VLSI) Systems, IEEE Transactions on
DOI :
10.1109/TVLSI.2006.884174
