High-speed voltage-feedback amplifier in a SOT-23-5
The MIC910BM5 from Micrel is a single-channel voltage-feedback op amp packing a 192 MHz -3dB bandwidth and a 270V/µs slew rate into a five-pin SOT-23-5 package.
The 270 V/µs slew rate means this amplifier can swing a 5 Vpp output in under 20 ns. That makes it a fit for driving coaxial cables in video lines or for amplifying fast pulse trains in time-of-flight or LIDAR receivers. The 135 MHz gain-bandwidth product tells you the small-signal gain holds up well past 100 MHz, but the -3dB bandwidth of 192 MHz is the number to use for open-loop or low-gain stages.
Package, footprint, and thermal reality
The part comes in a SC-74A / SOT-753 case — that's the standard SOT-23-5 footprint, 2.9 mm x 1.6 mm. Surface-mount only. The 72 mA output current per channel is respectable for a small package, but don't expect to drive heavy loads continuously without watching the junction temperature.
Lifecycle and compliance
Active product status — Micrel (now part of Microchip) still manufactures this part, so no last-time-buy scramble. One catch: RoHS non-compliant. If your assembly line is RoHS-only, you'll need to verify the exemption or look at lead-free alternatives. The input offset voltage is 1 mV typical, input bias current 3.5 µA — nothing exotic, but fine for AC-coupled or moderate-precision DC paths.
