A robust high-speed and low-power CMOS current comparator circuit

Author

Chen, Lu ; Shi, Bingxue ; Lu, Chun

Author_Institution

Inst. of Microelectron., Tsinghua Univ., Beijing, China

fYear

2000

fDate

2000

Firstpage

174

Lastpage

177

Abstract

As an important component of a current-mode signal processing circuit, a new continuous-time CMOS current comparator with high speed and low power is proposed. It comprises one CMOS complementary amplifier with a feedback MOS resistor, two resistive-load amplifiers and two CMOS inverters. Its features include short response delay, low power consumption and small area. Because of the absence of bias currents and voltages, this circuit is also robust to process deviations. Transient HSPICE simulation results with a 1.2 μm CMOS process verifies its superiority of speed/power ratio over other existing high-performance CMOS current comparators

Keywords

CMOS analogue integrated circuits; continuous time systems; current comparators; current-mode circuits; high-speed integrated circuits; integrated circuit design; low-power electronics; 1.2 micron; CMOS complementary amplifier; CMOS current comparator circuit; CMOS inverters; continuous-time current comparator; current-mode signal processing circuit; feedback MOS resistor; low power consumption; low-power comparator circuit; process deviations robustness; resistive-load amplifiers; robust high-speed comparator circuit; short response delay; speed/power ratio; transient HSPICE simulation; CMOS process; Circuits; Delay; Energy consumption; Feedback; Inverters; Resistors; Robustness; Signal processing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on

Conference_Location

Tianjin

Print_ISBN

0-7803-6253-5

Type

conf

DOI

10.1109/APCCAS.2000.913435

Filename

913435