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Discuss stability issues & frequency compensation of two stage operational amplifiers
written 6.1 years ago by gravatar for hetalgosavi hetalgosavi • 1.6k modified 4.0 years ago by gravatar for prashantsaini prashantsaini • 0
cmos vlsi design
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written 6.1 years ago by gravatar for hetalgosavi hetalgosavi • 1.6k modified 6.1 years ago by gravatar for sanketshingote sanketshingote • 100
  • 2 stage opamps are used when the output voltage swing must be maximised.
  • As shown in figure, we can identify 3 poles,
    • at X (or Y)
    • at E (or F)
    • at A (or B)
  • Pole X lies at relatively high frequencies.
  • At node A, the small signal resistance is lower …

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