Title :
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
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;
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
DOI :
10.1109/APCCAS.2000.913435
