Low-frequency, micropower dual op-amp for 3 V to 32 V rails
Its headline ratings are a 100 kHz gain-bandwidth product and a 0.05 V/µs slew rate, which together define it as a low-frequency, micropower part intended for sensor conditioning, DC biasing, and signal buffering where bandwidth above a few tens of kilohertz is not required. The supply current of 54 µA for both amplifiers — 27 µA per channel — makes this a candidate for battery-powered or always-on circuits where every microamp matters. The 3 V minimum supply span lets it operate from a 3.3 V rail with headroom, while the 32 V maximum covers industrial 24 V systems without a separate preregulator. For automotive or outdoor industrial use, the industrial or extended-temperature version of the LP358 family would be needed.
A 100 kHz gain-bandwidth product means the open-loop gain drops to unity at 100 kHz. For a closed-loop gain of 10, the usable bandwidth is roughly 10 kHz. This is adequate for low-frequency transducer outputs (thermocouples, strain gauges, pressure sensors) and for DC-level shifting or active filtering below the audio band. The 0.05 V/µs slew rate limits large-signal response — a 5 V output step slews in about 100 µs, so fast pulse edges or square-wave reproduction is not this part's role. Input offset voltage is rated at 2 mV, and input bias current at 2 nA. These are typical values for a general-purpose bipolar op-amp of this generation. For precision DC applications below 1 mV offset, a zero-drift or chopper-stabilized amplifier would be a better fit. This is enough to drive a typical ADC input, a comparator, or a low-power relay coil, but not a headphone or a motor winding. If higher drive current is needed, a buffer stage or a power op-amp should follow.
Package, mounting, and supply span decisions
The supply span range from 3 V to 32 V is a single number, meaning the part can work from a single supply (e.g., 5 V or 24 V) or from split supplies (e.g., ±1.5 V to ±16 V). The 3 V minimum is tight but usable with a 3.3 V rail — the input common-mode range and output swing near the rails should be checked against the signal levels in the specific design.
Lifecycle and compliance
ROHS3 compliance is confirmed. No other environmental or regulatory certifications (AEC-Q, MIL-STD, etc.) are listed for this order code.