An optimization design technique to
obtain global solution for a two-stage operational amplifier
(op-amp) with frequency compensation is presented. This frequency
compensation technique can adjust the equivalent resistance to
guarantee that the phase margin is stable even though circumstance
temperature varies. Geometric programming is used to optimize the
component values and transistor dimensions. It is used in this
analog integrated circuit design to calculate these parameters
automatically. This globally optimal amplifier obtains minimum power
while other specifications are fulfilled.
LI Dan (李 丹), RONG Meng-tian (戎蒙恬), SHU Guo-hua (殳国华)
. Optimization Design of Two-Stage Operational Amplifier with Frequency Compensation via Geometric Programming[J]. Journal of Shanghai Jiaotong University(Science), 2011
, 16(6)
: 648
-651
.
DOI: 10.1007/s12204-011-1205-5
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