Current feedback amplifier circuit of broadband transconductance operational amplifier and buffer OPA660

As shown in the figure, this is the current feedback amplifier circuit of OPA660. Signal V1 is input to pin 3 of OPA660 through a 47Ω resistor, amplified by internal amplifier 1 and output from pin 6; at the same time, pin 6 is fed back to pin 2 of OPA660 through a 200Ω resistor, forming a current feedback amplifier. The current feedback amplifier can stabilize the static operating point, widen the bandwidth, and reduce the amplifier output distortion. The circuit gain G=1 R4/R5=10.