Title :
A CMOS current-mirror amplifier with compact slew rate enhancement circuit for large capacitive load applications
Author :
Lee, Hoi ; Mok, Philip K T
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Clear Water Bay, China
Abstract :
A new slew rate enhancement (SRE) circuit incorporated into a current-mirror amplifier, which does not affect the small-signal frequency response of the core amplifier, is presented. With the proposed enhancement circuit, simulation results show that more than 38 times improvements in both the slew rate and the settling time are achieved. Experimental results show that with 280 μW power consumption. 1.7 V/μs slew rate and 610 ns settling time at 470 pF loading capacitor, were obtained
Keywords :
CMOS analogue integrated circuits; current mirrors; frequency response; integrated circuit design; 280 muW; 470 pF; 610 ns; CMOS current-mirror amplifier; compact slew rate enhancement circuit; large capacitive load applications; small-signal frequency response; CMOS technology; Capacitors; Circuit simulation; Energy consumption; Laboratories; Operational amplifiers; Power amplifiers; Power electronics; Power engineering and energy; Voltage;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921830
