The ISL28108, ISL28208 and ISL28408 are single, dual and quad low power precision amplifiers optimized for single supply applications. These devices feature a common mode input voltage range extending to 0. 5V below the V- rail, a rail-to-rail differential input voltage range for use as a comparator, and rail-to-rail output voltage swing, which make them ideal for single supply applications where input operation at ground is important. Added features include low offset voltage, and low temperature drift making them the ideal choice for applications requiring high DC accuracy. The output stage is capable of driving large capacitive loads from rail-to-rail for excellent ADC driving performance. The devices can operate for single or dual supply from 3V (±1. 5V) to 40V (±20V) and are fully characterized at ±5V and ±15V. The combination of precision, low power, and small footprint provide the user with outstanding value and flexibility relative to similar competitive parts. Applications for these amplifiers include precision instrumentation, data acquisition, precision power supply control, and industrial control. The ISL28108 single is offered in 8 Ld TDFN, MSOP and SOIC packages. The ISL28208 dual amplifier is offered in 8 Ld TDFN, MSOP, and SOIC packages. The ISL28408 is offered in 14 Ld SOIC package. All devices are offered in standard pin configurations and operate over the extended temperature range of -40°C to +125°C.


  • Single or dual supply, rail-to-rail output and below ground (V-) input capability
  • Rail-to-rail input differential voltage range for comparator applications
  • Single supply range: 3V to 40V
  • Low current consumption (VS = ±5V): 165µA
  • Low noise voltage: 15.8nV/√Hz
  • Low noise current: 80fA/√Hz
  • Low input offset voltage (ISL28108): 150µV
  • Superb temperature drift - Voltage offset TC: 0.1µV/°C, Typ
  • Low input bias current: -13nA Typ
  • Operating temperature range: -40°C to +125°C
  • No phase reversal


  • Precision instruments
  • Medical instrumentation
  • Data acquisition
  • Power supply control
  • Industrial process control

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICN Tube 980
Active SOICN Reel 2500
Active SOICN Reel 1000
Active SOICN Reel 250
Active TDFN Tube 1600
Active TDFN Reel 6000
Active TDFN Reel 1000
Active TDFN Reel 250

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL28108, ISL28208, ISL28408 Datasheet Datasheet PDF 1.95 MB
Application Notes & White Papers
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1145: A Compendium of Application Circuits for Intersil's Digitally-Controlled (XDCP) Potentiometers Application Note PDF 384 KB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
AN1107: Silicon On Insulator Application Note PDF 286 KB
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB
PCN12085B - Alternate Manufacturing Site for Assembly of the Listed Intersil SOIC Packaged Products - update to remove select products Product Change Notice PDF 372 KB
PCN12085 - 8l, 14l, 16l SOIC w/ Gold Bond Wire @ ATP as Alternate Assembly Site Product Change Notice PDF 152 KB
PCN12084 - Manufacturing Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh Malaysia Product Change Notice PDF 135 KB
isl28108_208 Model TXT 5 KB
TB514: Operational Amplifier Basics Other PDF 519 KB