Patent ID: 9577593
Date: 2017-02-21
CPC Classifications: H03F

Claim:
1. An implicit feed-forward compensated (FFC) operational amplifier comprising: (a) a first stage comprising a first amplifier, said first amplifier connected to a bias and active load and comprising a first Common Mode Feedback Circuitry (CMFB), said first stage comprising an NMOS input transistor for an input and output; (b) a second stage comprising a second amplifier, said second amplifier connected to said bias and active load and comprising a second CMFB, said second stage comprising a NMOS split pair and PMOS input transistor for an input and output, wherein (c) a third stage comprising a third amplifier, said third amplifier connected to said bias and active load and comprising a third CMFB, said third stage comprising a parallel NMOS and PMOS input transistors for an input and output, wherein