The ISL28118, ISL28218 are single and dual, 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 makes them ideal for single-supply applications where input operation at ground is important. These op amps feature low power, low offset voltage and low temperature drift, making them the ideal choice for applications requiring both high DC accuracy and AC performance. These amplifiers are designed to operate over a single supply range of 3V to 40V or a split supply voltage range of +1. 8V/-1. 2V to ±20V. The combination of precision and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts. Applications for these amplifiers include precision instrumentation, data acquisition, precision power supply controls and industrial controls. Both parts are offered in 8 Ld SOIC and 8 Ld MSOP packages. All devices are offered in standard pin configurations and operate across the extended temperature range of -40°C to +125°C.


  • Rail-to-rail output    <10mV
  • Below-ground (V-) input capability to -0.5V, ground sensing
  • Single-supply range 3V to 40V
  • Low current consumption 850µA
  • Low noise voltage 5.6nV/√Hz
  • Low noise current 355fA/√Hz
  • Low input offset voltage
    • ISL28118 150µV (max)
    • ISL28218 230µV (max)
  • Superb offset voltage temperature drift
    • ISL28118 1.2µV/°C (max)
    • ISL28218 1.4µV/°C (max)
  • 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 970
Active SOICN Reel 2500
Active SOICN Reel 250
Active MSOP Tube 980
Active MSOP Reel 2500
Active MSOP Reel 1000
Active MSOP Reel 250

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL28118, ISL28218 Datasheet Datasheet PDF 1.81 MB
User Guides & Manuals
ISL28218SOICEVAL1Z User Guide Manual PDF 472 KB
Application Notes & White Papers
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 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
isl28118_218 Model TXT 4 KB
TB514: Operational Amplifier Basics Other PDF 519 KB
ISL28218SOICEVAL1Z Design Files Design File ZIP 216 KB

Boards & Kits

Part Number Title Type Company
ISL28218SOICEVAL1Z 40V Precision Single Supply Rail-to-Rail Output Low Power Op Amp Evaluation Board Evaluation