VFB与CFB比较1 MT-034
TUTORIAL
Current Feedback (CFB) Op Amps
INTRODUCTION
In this tutorial the two basic op amp topologies―voltage feedback (VFB) and current feedback
(CFB)―are discussed in more detail, and the differences are pointed out. The basic voltage
feedback op amp along with gain equations is repeated here in Figure 1.
VIN + A(s) = OPEN LOOP GAIN
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