The OPA695 provides good distortion performance into a 100-Ω load on ±5-V supplies. Compared to other devices, the OPA695 holds lower distortion at higher frequencies (> 20 MHz). Generally, until the fundamental signal reaches very high frequency or power levels, the 2nd-harmonic dominates the distortion with a negligible 3rd-harmonic component. Focusing on the 2nd-harmonic, increasing the load impedance directly improves distortion; the total load includes the feedback network. In the noninverting configuration (see Figure 6-1), this feedback network load is the sum of R_F + R_G, while in the inverting configuration, the feedback network load is only R_F. Also, providing an additional supply decoupling capacitor (0.01 μF) between the supply pins (for bipolar operation) improves the 2nd-order distortion.