Dual op-amp in SOT-23-8 — 800 kHz GBW, rail-to-rail output
The MAX4402AKA+T: It delivers a gain-bandwidth product of 800 kHz and a slew rate of 1V/µs, with rail-to-rail output swing that maximizes dynamic range in low-voltage, single-supply designs.
The rail-to-rail output stage lets the amplifier swing within millivolts of each supply rail, which is useful when the ADC reference or downstream comparator threshold sits near the supply. Input offset voltage is specified at 1 mV, and input bias current is 0.1 pA — the CMOS input stage keeps the offset error low even with high source impedances.
Active lifecycle, ROHS3, wide temperature range
The SOT-23-8 package is a surface-mount footprint that suits automated assembly and dense PCB layouts.
Output current and capacitive load considerations
Each channel can source or sink 30 mA of output current, enough to drive a moderate ADC input or a small analog multiplexer. The 800 kHz gain-bandwidth product and 1V/µs slew rate are typical for general-purpose filtering and amplification up to a few tens of kilohertz.