Overview

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

The ISL28138 and ISL28238 are 4. 5MHz low-power single and dual operational amplifiers. The parts are optimized for single supply operation from 2. 4V to 5. 5V, allowing operation from one lithium cell or two Ni-Cd batteries. The parts feature an Input Range Enhancement Circuit (IREC) which enables them to maintain CMRR performance for input voltages greater than the positive supply. The input signal is capable of swinging 0. 25V above the positive supply and to 100mV below the negative supply with only a slight degradation of the CMRR performance. The output operation is rail-to-rail. The parts draw minimal supply current (900µA per amplifier) while meeting excellent DC accuracy, AC performance, noise and output drive specifications. The ISL28138 features an enable pin that can be used to turn the device off and reduce the supply current to less than 20µA. Operation is guaranteed over -40°C to +125°C temperature range.

ISL28138 Functional Diagram
ISL28138 Functional Diagram
  • 4.5MHz gain bandwidth product
  • 900µA supply current (per amplifier)
  • 300µV maximum offset voltage
  • 1pA typical input bias current
  • Down to 2.4V single supply voltage range
  • Rail-to-rail input and output
  • Output sources and sinks 60mA load current
  • Enable pin (ISL28138)
  • -40°C to +125°C operation
  • Pb-free (RoHS compliant)

Applications

  • Low-end audio
  • 4mA to 20mA current loops
  • Medical devices
  • Sensor amplifiers
  • ADC buffers
  • DAC output amplifiers

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Buy / Sample
    Part Number
    ISL28138FBZ
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    		SOICN Tube
    ISL28138FBZ-T7
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    		SOICN Reel
    ISL28138FHZ-T7
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    view_in_ar
    		SOT23 Reel
    ISL28138FHZ-T7A
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    		SOT23 Reel
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