The OPA3S2859 features a high slew rate of 350 V/µs. The slew rate is a critical parameter in high-speed pulse applications such as optical time-domain reflectometry (OTDR). As Figure 6-11 shows, the high slew rate implies that the device accurately reproduces a 2-V, sub 100-ns pulse edge. The wide bandwidth and slew rate of the device make it an excellent amplifier for high-speed signal-chain front ends.