Analog Products

Overview

Description

The  ISL28291 is a tiny, dual, ultra-low noise, ultra-low distortion operational amplifier. It is fully specified to operate down to +3V single supply. This amplifier has outputs that swing rail-to-rail and an input common mode voltage that extends to ground (ground sensing). The device is unity gain stable with an input referred voltage noise of 1.7nV/√Hz. Both parts feature 0.00018% THD+N at 1kHz. The ISL28291 is available in the 8 Ld SOIC, 10 Ld 1.8mm x 1.4mm UTQFN and 10 Ld MSOP packages. All devices are guaranteed over -40 °C to +125 °C.

Features

  • 1.7nV/√Hz input voltage noise at 1kHz
  • 1kHz THD+N typical 0.00018% at 2VP-P VOUT
  • Harmonic Distortion -76dBc, -70dBc, fo = 1MHz
  • 61MHz -3dB bandwidth
  • 630µV maximum offset voltage
  • 3µA input bias current
  • 100dB typical CMRR
  • 3V to 5.5V single supply voltage range
  • Rail-to-rail output
  • Ground sensing
  • Enable pin (not available in the 8 Ld SOIC package option)
  • Pb-free (RoHS compliant)

Applications

  • Low noise signal processing
  • Low noise microphones/preamplifiers
  • ADC buffers
  • DAC output amplifiers
  • Digital scales
  • Strain gauges/sensor amplifiers
  • Radio systems
  • Portable equipment
  • Infrared detectors

Documentation

Title Type Date
PDF1.99 MB
Datasheet
PDF381 KB
Application Note
PDF263 KB
Application Note
PDF564 KB
Application Note
PDF679 KB
Application Note
PDF8.19 MB
Application Note
PDF976 KB
Application Note
PDF2.04 MB
Application Note
PDF556 KB
Application Note
PDF1.02 MB
Application Note
PDF357 KB
Application Note
PDF843 KB
Application Note
PDF2.72 MB日本語
Brochure
PDF1.11 MB
Flyer
PDF393 KB
Manual - Development Tools
PDF519 KB
Other
PDF291 KB
Product Advisory
PDF363 KB
Product Advisory
PDF178 KB
Product Change Notice
PDF98 KB
Product Change Notice
PDF152 KB
Product Change Notice
PDF135 KB
Product Change Notice
PDF117 KB
Product Change Notice
PDF205 KB
Product Change Notice

Design & Development

Boards & Kits

Boards & Kits

Models

Models

Title Type Date
TXT5 KB
Model - SPICE

Support