Using a bipolar design, the amplifiers typically provide ten times more bandwidth and slew rate than CMOS amplifiers in the same supply current class. A proprietary gain stage (patent application submitted) allows the amplifiers to achieve as much as a 50% higher slew rate (50 V/μs for the KM4110) with a low supply current (0.5 mA). With extremely low supply current of less than 70 μA, the KM4112 achieves 7 MHz gain-bandwidth with slew rate of 9 V/µs. For higher bandwidth applications that allow for increased supply current, the KM4111 and KM4121 offer a 35 MHz bandwidth and 27 V/μs slew rate, with only 0.2 mA.
In addition, the KM4120 and the KM4121 are similar to KM4110 and KM4111, except they have an active-low disable pin that can be used to lower their supply current to less than 30 μA. This feature reduces power consumption in the standby mode. The output stage of all five products is short circuit protected and offers "soft" saturation protection that improves recovery time. These amplifiers are designed to operate from +2.5V to +5.5V, or ± 1.25 V to ± 2.5 V supplies.