SBOS309E August 2004 – December 2024 OPA2830
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The OPA2830 provides good distortion performance into a 150Ω load. Relative to alternatives, this device provides exceptional performance into lighter loads operating on a single 3V supply. 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 then on the 2nd-harmonic, increasing the load impedance improves distortion directly. Remember that the total load includes the feedback network; in the noninverting configuration (see Figure 8-3) this is sum of RF + RG, while in the inverting configuration, only RF must be included in parallel with the actual load. Running differentially suppresses the 2nd-harmonic; see also the differential Typical Characteristics.