Device identity and key parametrics
The MAX4471EKA+T is a dual general-purpose operational amplifier from Analog Devices, supplied in an 8-lead SOT-23 package. It is a rail-to-rail output device, meaning the output can swing within millivolts of the supply rails — useful when driving an ADC input or a low-voltage load without an extra rail. Gain bandwidth product is 9 kHz, with a slew rate of 0.002 V/µs. These figures place it firmly in the ultra-low-power, low-frequency signal conditioning space — think sensor amplification, DC offset correction, or battery-monitor front-ends where the signal changes slowly.
Power budget and supply flexibility
Supply current is 750 nA per channel (1.5 µA total for both amplifiers), which makes this part suitable for always-on or battery-backed analog stages where every microamp counts. Input offset voltage is 500 µV max, and input bias current is 200 pA — both adequate for general-purpose conditioning of signals in the millivolt range.
Package, temperature grade, and compliance
The SOT-23-8 package (supplier device package SOT-23-8) is a compact surface-mount footprint, 2.9 mm × 1.6 mm typical body size. Lifecycle status is Active, and the part is ROHS3 compliant. Tape & Reel packaging (as indicated by the +T suffix) is standard for automated pick-and-place assembly.