Figure 4
From: Printed 5-V organic operational amplifiers for various signal processing

Frequency characteristics of the organic OPAs. Frequency dependence of the small-signal gain and phase for the open-loop organic OPA and the closed-loop non-inverting amplifier. R1 = 100 MΩ and R2 = 500 MΩ was used for the non-inverting amplifier. Dashed lines indicate the simulation curve by using the LTspice software.