100 kHz GBW, 20 µA per channel — the low-power signal chain anchor
The OPA2336UA is a dual CMOS operational amplifier from Texas Instruments' MicroAmplifier™ series, packing two rail-to-rail output stages into a single 8-SOIC package. Its 100 kHz gain-bandwidth product and 0.03 V/µs slew rate suit it for low-frequency sensor conditioning, battery monitoring, and portable instrumentation where every microamp counts.
Supply current and input bias — the numbers that decide the fit
Drawing just 20 µA per channel (40 µA total for both amplifiers), the OPA2336UA keeps the quiescent drain low enough for always-on sense circuits in battery-powered gear. The 1 pA typical input bias current means negligible offset error from the amplifier itself when interfacing with high-impedance sources like pH probes or photodiode front-ends — the bias current doubles roughly every 10 °C, but at 85 °C it still stays below 100 pA, well within the tolerance of a 10 MΩ sensor. Input offset voltage is trimmed to 60 µV typical, which for a gain-of-100 stage contributes 6 mV of DC error at the output — acceptable for a 12-bit system with a 2.5 V reference, but worth derating if the application targets 16-bit resolution without autozero. The rail-to-rail output swings within 10 mV of either supply rail at light loads, preserving dynamic range in single-supply designs.
Supply range and temperature grade
Operating from 2.3 V to 5.5 V single supply (or ±1.15 V to ±2.75 V split), the OPA2336UA covers the common 3.3 V and 5 V logic rails without needing a separate regulator. The -40 °C to +85 °C industrial temperature range qualifies it for outdoor telecom cabinets, engine-bay-adjacent enclosures, and factory-floor sensor modules that see seasonal swings. Housed in the 8-SOIC (0.154-inch body width, 3.90 mm) with supplier package designation 8-SOIC, the part mates with standard SOIC-8 footprints and reflow profiles. The tube packaging suits low-to-medium volume assembly; for high-speed pick-and-place, verify the tube-to-reel transfer with your contract manufacturer.
Active production, ROHS3 — no lifecycle surprises
Texas Instruments lists the OPA2336UA as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window has been issued. The part is available through authorized and independent distribution channels; lead time and current pricing are confirmed at quote time against your BOM quantity.