CMOS dual op-amp for low-frequency, high-impedance signal chains
It packs two independent amplifiers in an 8-SOIC package, each drawing 285 µA total supply for the pair, with a typical input bias current of 0.7 pA — the kind of spec that makes it the natural choice for photodiode transimpedance stages, pH probe buffers, piezoelectric sensor front-ends, and other high-impedance interfaces where a bipolar op-amp's nanoamp bias would swamp the signal. The gain-bandwidth product sits at 635 kHz with a 0.62 V/µs slew rate, which puts it squarely in the DC-to-audio-sub-band range. It is not a high-speed part — you are not driving an ADC at 100 ksps or shaping a PWM output with it. What it does well is hold a stable DC level, amplify a slow-changing bridge output, or buffer a reference voltage, all while keeping the power budget tight. The supply span runs from 4 V up to 16 V, covering the common 5 V and 12 V industrial rails, but it will not run on a 3.3 V rail — that lower limit rules it out for many modern portable or single-cell applications. Output drive is rated at 30 mA per channel, enough to swing into a typical ADC input or drive a transistor stage, but not meant for driving a headphone or a relay coil directly. Input offset voltage is 900 µV, which is adequate for general-purpose sensing but not precision DC measurement — if you need microvolt-level offset, you step up to a chopper-stabilized part.
What the 0.7 pA input bias means for your sensor front-end
The 0.7 pA input bias current is the headline differentiator here. In a photodiode amplifier with a 10 MΩ feedback resistor, that bias contributes just 7 µV of offset error — negligible. A bipolar op-amp with 100 nA bias would add a full 1 V of error across the same resistor, swamping the signal. The CMOS input stage also means the bias current stays flat over temperature, unlike a JFET input where bias doubles every 10°C. If your design has a high-source-impedance sensor and you are trying to keep the error budget under a few millivolts, this is the parameter that makes the part fit.
Lifecycle and supply — active, no end-of-life notice
ROHS3 compliant.