The OPA2652U-1: Its headline numbers are a 700 MHz -3 dB bandwidth and a 335 V/µs slew rate, backed by a 200 MHz gain-bandwidth product. These specs target applications where settling time and large-signal pulse response matter more than raw DC precision — think ADC input drivers, video distribution amplifiers, or high-speed transimpedance stages where the signal edge must stay clean through a 6-12 V supply rail.
11 mA per channel — reading the supply budget
Each of the two channels draws 11 mA quiescent, for a total of 22 mA from the 6 V to 12 V rail. That is not a low-power part — the speed costs current. At 12 V the package dissipation sits at 264 mW quiescent, plus whatever the 140 mA output stage delivers into the load.