SBOS724A September 2015 – June 2022 OPA1688
The OPA1688 op amp provides high overall performance, making the device an excellent choice for many general-purpose applications. The excellent offset drift of only 1.5 µV/°C (max) provides excellent stability over the entire temperature range. In addition, the device offers very good overall performance with high CMRR, PSRR, AOL, and superior THD.
Section 8.2 shows the simplified diagram of the OPA1688 design. The design topology is a highly-optimized, three-stage amplifier with an active-feedforward gain stage.