The ISL28190/ISL28290 is a single/dual ultra-low noise, ultra-low distortion, rail-to-rail op amp from Intersil.
The ISL28190 (single) and ISL28290 (dual) are ultra‑low‑noise, ultra‑low‑distortion operational amplifiers with rail‑to‑rail output swing and ground‑sensing input. They operate from a single 3 V to 5.5 V supply and are guaranteed over –40 °C to +125 °C.
Typical applications include low‑noise signal processing such as microphone pre‑amplifiers, ADC buffers, DAC output stages, digital scales, strain‑gauge amplifiers, radio systems, portable equipment, and infrared detectors.
| Input referred voltage noise | 1 nV/√Hz |
|---|---|
| Harmonic distortion | -87 dBc (2nd), -90 dBc (3rd) |
| Bandwidth (-3 dB) | 170 MHz |
| Slew rate | 50 V/µs |
| Maximum offset voltage | 700 µV |
| Input bias current | 10 nA |
| Operating temperature range | -40 °C to +125 °C |
The ISL28190 is offered in SOT‑23 and ultra‑thin pTDFN (6 L × 1.6 mm) packages.
The input referred voltage noise is 1 nV/√Hz.
The amplifiers are rated for temperatures up to +125 °C (and down to –40 °C).