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ISL28276| Datasheet

By datasheet - October 30th, 2008

ISL28276, ISL28476

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ISL28276, ISL28476
Data Sheet November 30, 2007 FN6301.3

Dual and Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Precision Op Amp
The ISL28276 and ISL28476 are dual and quad channel micropower operational amplifiers optimized for single supply operation over the 2.4V to 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 EL8176. 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 down to the negative supply. The output operation is rail to rail. The ISL28276 and ISL28476 draw minimal supply current while meeting excellent DC-accuracy, AC-performance, noise and output drive specifications. The ISL28276 contains a power down enable pin that reduces the power supply current to typically 4uA in the disabled state.

Features
Low power 120uA typical supply current (ISL28276) 100uV maximum offset voltage 500pA typical input bias current 400kHz typical gain-bandwidth product 115dB typical PSRR and CMRR Single supply operation down to 2.4V Input is capable of swinging above V+ and to V- (ground sensing) Rail-to-rail input and output (RRIO) Pb-free (RoHS compliant)

Applications
Battery- or solar-powered systems 4mA to 25mA current loops Handheld consumer products

Ordering Information
PART NUMBER (Note) ISL28276FBZ* ISL28276IAZ* ISL28476FAZ* PART MARKING 28276 FBZ 28276 IAZ 28476 FAZ PACKAGE (Pb-free) 8 Ld SOIC PKG. DWG. # MDP0027

Medical devices Thermocouple amplifiers Photodiode pre-amps pH probe amplifiers

16 Ld QSOP MDP0040 16 Ld QSOP MDP0040

*Add "-T7" suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006, 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners.


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