Title :
Slew rate enhancement technique for CMOS output buffers
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
A novel technique for enhancing the slew rate in CMOS amplifiers is described. The slew enhancement is provided by an auxiliary circuit which is activated only during transients. The core amplifier is not stressed with the large transient currents, thus minimising transient power dissipation and also avoiding signal swing problems. A slew rate of 1 V/ mu s with a 10000 pF load capacitance has been achieved, while requiring a quiescent power dissipation of less than 1.5 mW.
Keywords :
CMOS integrated circuits; differential amplifiers; linear integrated circuits; operational amplifiers; transients; 1.5 mW; 10000 pF; CMOS output buffers; amplifiers; analogue ICs; load capacitance; op amps; quiescent power dissipation; slew enhancement; slew rate; transient currents; transient power dissipation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890872
