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A CMOS current feedback operational amplifier with active current mode compensation

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4 Author(s)
Kin-Pui Ho ; Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China ; Cheong-Fat Chan ; Chiu-Sing Choy ; Kong-Pang Pun

This paper presents a two-stage current feedback operational amplifier with a 148 dbΩ transimpedance gain and a rail-to-rail output voltage swing. The amplifier is actively compensated, but without adding extra components to the basic amplifier topology. Thus, the chip area and power consumption can be kept to a minimum. In addition, a maximum gain-bandwidth product of 90 MHz can be achieved with a DC power consumption of 6.5 mW.

Published in:

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on  (Volume:1 )

Date of Conference:

2002