450 MHz bandwidth in a SOT-23-6 — what that buys you
Its -3 dB bandwidth of 450 MHz and slew rate of 360 V/µs make it a fit for high-speed signal paths like video buffers, ADC front-ends, and photodiode transimpedance stages where wide closed-loop gain flatness matters.
At 360 V/µs the OPA355QDBVRQ1 can reproduce a 5 Vpp sine wave at roughly 11 MHz before the slew rate limits the full-power bandwidth. For a 450 MHz small-signal bandwidth, that means the part is intended for small-signal amplification (gain-of-1 to gain-of-10) where the output swing stays under a few hundred millivolts. If you need to swing rail-to-rail at high frequency, the 100 mA output current per channel gives enough drive for 50 Ω back-terminated video lines or a moderate capacitive load.
Automotive temp range and AEC-Q100
For designs that need a high-speed CMOS op-amp in a small footprint and must meet automotive PPAP requirements, this is the qualified variant.
Supply range and input characteristics
The CMOS input stage draws only 3 pA typical input bias current, which keeps DC errors negligible when the source impedance is high — useful for photodiode or high-impedance sensor front-ends.