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A CMOS current-mirror amplifier with compact slew rate enhancement circuit for large capacitive load applications

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2 Author(s)
Hoi Lee ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Clear Water Bay, China ; Mok, P.K.T.

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

Published in:

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on  (Volume:1 )

Date of Conference:

6-9 May 2001