Overview

Description

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The ISL28488 is a quad channel micropower operational amplifier optimized for single supply operation over the 2.4V to 5.5V range. It can be operated from one lithium cell or two NiCd batteries. This device features an Input Range Enhancement Circuit (IREC) which enables it to maintain CMRR performance for input voltages 10% above the positive supply rail and to 100mV below the negative supply. The output operation is rail-to-rail. The ISL28488 draws minimal supply current while meeting excellent DC accuracy, AC performance, noise, and output drive specifications.

For equivalent performance in a single channel op amp, reference EL8188.

Features

  • Low power 60µA typical supply current
  • 1.5mV max offset voltage
  • 30pA max input bias current
  • 250kHz typical gain-bandwidth product
  • 105dB typical PSRR
  • 100dB typical CMRR
  • Single supply operation down to 2.4V
  • Input is capable of swinging above V+ and below V- (ground sensing)
  • Rail-to-rail input and output (RRIO)
  • Pb-free (RoHS compliant)

Comparison

Applications

Applications

  • Battery- or solar-powered systems
  • 4mA to 25mA current loops
  • Handheld consumer products
  • Medical devices
  • Thermocouple amplifiers
  • Photodiode pre-amps
  • pH probe amplifiers

Documentation

Design & Development

Boards & Kits

Boards & Kits

Models