The Renesas ISL28230CRZ is a dual-channel, general-purpose operational amplifier in an 8-DFN (3x3) package. It delivers rail-to-rail output swing, a 400 kHz gain-bandwidth product, and a 0.2 V/µs slew rate — specs that place it in the low-power precision tier, not the high-speed or high-output-current class. The 5 µV typical input offset voltage and 20 µA supply current per channel make it a natural fit for battery-powered sensor conditioning, portable instrumentation, and always-on signal chains where every microamp of quiescent current and every microvolt of offset matters.
5 µV offset and 20 µA supply — the precision-per-power tradeoff
The headline numbers here are the 5 µV input offset voltage and the 20 µA supply per amplifier. For a general-purpose op-amp, that offset is unusually tight — it means you can amplify a 10 mV thermocouple signal without the op-amp's own error swamping the reading. The 20 µA per channel keeps the total quiescent draw at 40 µA for both amplifiers, which is low enough for a battery-powered data logger that runs for months on a CR2032. The tradeoff is bandwidth: 400 kHz gain-bandwidth and 0.2 V/µs slew rate limit this part to audio-frequency and low-speed control loops, not switching regulators or video buffers.
Package and footprint: 8-DFN with exposed pad
The ISL28230CRZ comes in an 8-VDFN exposed-pad package (3x3 mm body). The pad also carries the die's substrate, so leaving it floating can couple switching noise into the amplifier. The tube shipping medium is typical for prototype and low-volume builds; production quantities often move to tape-and-reel under a different order code suffix.
Temperature grade: commercial only
If the design needs to operate below freezing or above 70°C — outdoor telecom, automotive cabin, or engine-bay-adjacent — the ISL28230IRZ is the industrial-temperature (-40°C to 125°C) sibling. The two are otherwise pin-compatible and share the same core parametric table.
Lifecycle and supply posture
For BOM planning, this means the part is still a valid design-in for new builds and carries no imminent obsolescence risk.