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Renesas Electronics ISL28230CUZ — Analog & Data Acquisition

ISL28230CUZ Dual Op-Amp, 5 µV Offset, 400 kHz, 8-MSOP

MPNISL28230CUZ
End of Life

Renesas ISL28230CUZ dual general-purpose op-amp, 5 µV input offset, 400 kHz gain bandwidth, 0.2 V/µs slew rate, 20 µA supply per channel, rail-to-rail output, 1.8 V to 5.5 V supply, 8-MSOP package, 0°C to 70°C.

$2.19Ref. price · indicative, final on quote
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ISL28230CUZ specifications
ParameterValue
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset5 µV
Voltage - supply span5.5 V
Current - supply20µA (x2 Channels)
Current - input bias250 pA
Current - output (Channel)15 mA
Operating temperature0°C ~ 70°C
Gain bandwidth product400 kHz
PackageTube
Slew rate0.2V/µs
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of circuits2

Product details

5 µV offset, 20 µA per channel — the precision-versus-power trade-off

The Renesas ISL28230CUZ is a dual general-purpose op-amp that lands in a sweet spot most parts miss: it delivers a 5 µV maximum input offset while drawing only 20 µA per channel. That combination means you can build a precision DC signal chain — thermocouple amplifier, strain-gauge front-end, battery-voltage monitor — without burning the battery budget or adding an external trim pot.

It is sized for sensor conditioning, DC offset correction, and low-frequency filtering — think 10 Hz strain-gauge outputs or 100 Hz temperature readings, not audio or switching waveforms. The 250 pA input bias current keeps the error from source impedance manageable; a 10 kΩ source adds only 2.5 µV of offset.

If your board lives in a conditioned space, the commercial grade is fine; otherwise look at the extended-temp variants in the ISL28xxx family.

8-MSOP package — small footprint, no thermal pad

The ISL28230CUZ comes in an 8-MSOP package (3.00 mm width), surface-mount only. The 8-MSOP has no exposed thermal pad, so all heat dissipates through the leads into the PCB copper. At 20 µA per channel the junction temperature is not a concern, but if you were to push the output current near the 15 mA limit on both channels simultaneously, the copper pour under the package matters.

Frequently asked questions

What is the equivalent or replacement for the ISL28230CUZ?

For a similar low-power dual op-amp from Renesas, the ISL28291FUZ-T7 offers a 61 MHz GBP and 17 V/µs slew rate but draws 2.6 mA per channel — a very different power-versus-speed trade-off. The ISL28005FH50Z-T7A is a current-sense amplifier, not a general-purpose op-amp, and is not a functional replacement.

What is the ISL28230CUZ's slew rate?

The slew rate is 0.2 V/µs, which together with the 400 kHz gain-bandwidth product sets the speed ceiling for low-frequency signal conditioning.