Support is limited to customers who have already adopted these products.

The ISL28288 and ISL28488 are dual and quad channel micropower operational amplifiers optimized for single supply operation over the 2. 4V to 5. 5V range. They can be operated from one lithium cell or two Ni-Cd batteries. For equivalent performance in a single channel op amp, reference EL8188. These devices feature an Input Range Enhancement Circuit (IREC) which enables them 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 ISL28288 and ISL28488 draw minimal supply current while meeting excellent DC-accuracy, AC-performance, noise and output drive specifications. The ISL28288 (10 Ld MSOP only) contains a power-down enable pin that reduces the power supply current to typically less than 4µA in the disabled state.

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)
  • Enable Pin - ISL28288 10 Ld MSOP package option only
  • Pb-free (RoHS compliant)

Applications

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

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Obsolete TSSOP Tube 940
Availability
Obsolete TSSOP Reel 1000
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL28288, ISL28488 Datasheet Datasheet PDF 1.24 MB
User Guides & Manuals
ISL284xxEVAL1Z User Guide Manual PDF 559 KB
Application Notes & White Papers
How to Bias Op-Amps Correctly Application Note PDF 263 KB
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
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB
PCNs & PDNs
PCN12084 - Manufacturing Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh Malaysia Product Change Notice PDF 135 KB
PCN11113A - Manufacturing Site Change for Assembly of the Listed Intersil TSSOP Packaged Products - Carsem-M (CAM) - Ipoh, Malaysia Product Change Notice PDF 121 KB
PCN11113 - Manufacturing Site Change for Assembly of the Listed Intersil TSSOP Packaged Products - Carsem-M (CAM) - Ipoh, Malaysia Product Change Notice PDF 120 KB
PCN11075 - Data Sheet and Wafer Fabrication Site Change for Intersil Product ISL28288* and ISL28488* - NXP Semiconductor Nijmegen, Netherlands Product Change Notice PDF 179 KB
Other
TB514: Operational Amplifier Basics Other PDF 519 KB
General-purpose operational amplifiers and comparators Pamphlet Flyer PDF 1.11 MB

Boards & Kits

Part Number Title Type Company
ISL28288EVAL1Z Dual Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Op Amp Eval Board Evaluation
ISL28488EVAL1Z Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Op Amp Eval Board Evaluation