The OPA3S328 features integrated switches that can be used in many different configurations. Two sets of switches each have a single input (INSA and INSB) that multiplexes to two or three different outputs (OUTSA1, 2, and 3 and OUTSB1, 2, and 3). The QFN package has both a 1-to-2 switch matrix and a 1-to-3 switch matrix. The DSBGA package has two 1-to-3 switch matrices. The switches feature make-before-break switching, meaning that when programmed to a different switch connection, the previous switch does not change to high-impedance state until the new switch is closed, with a typical 2-µs delay when both switches are closed. This feature keeps the amplifier from operating in an open-loop state when the switches are used in a switched-gain transimpedance configuration.