Low Power Op - Amp Based on Weak Inversion with Miller - Cascoded Frequency Compensation

  • Maryam Borhani
  • Published 2010


A design for a rail-to-rail input and output operational amplifier is introduced. The circuit operates with 0.8 V single supply. The rail-to-rail input stage with controlled gm is obtained by biasing transistors in weak inversion and one-times current mirror. The opamp provides a DC gain of 78 dB and gain-bandwidth (GBW) of 1.7 MHz at a 13 pF, 108 kΩ load… (More)


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