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ISL28278 Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL28278 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 13 page 1 ® FN6145.2 ISL28278, ISL28478 Dual and Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Op-Amp The ISL28278 and ISL28478 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 EL8178. 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 ISL28278 and ISL28478 draw minimal supply current while meeting excellent DC-accuracy, AC-performance, noise and output drive specifications. The ISL28278 contains a power down enable pin that reduces the power supply current to typically 4µA in the disabled state. Pinouts ISL28278 (16 LD QSOP) TOP VIEW ISL28478 (16 LD QSOP) TOP VIEW Features • Low power 120µA typical supply current (ISL28278) •225 μV max offset voltage • 30pA max input bias current • 300kHz 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 (ISL28278 only) • Pb-free plus anneal available (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 Ordering Information 1 2 3 4 16 15 14 13 5 6 7 12 11 10 8 9 NC NC OUT_A IN-_A NC V+ OUT_B IN-_B IN+_A IN+_B EN_A V- EN_B NC NC NC 1 2 3 4 16 15 14 13 5 6 7 12 11 10 8 9 OUT_A IN-_A IN+_A V+ OUT_D IN-_D IN+_D V- IN+_B IN+_C IN-_B OUT_B IN-_C OUT_C NC NC PART NUMBER (Note) PART MARKING PACKAGE (Pb-Free) PKG. DWG. # ISL28278FAZ* 28278FAZ 16 Ld QSOP MDP0040 ISL28478FAZ* 28478FAZ 16 Ld QSOP MDP0040 *“-T7” suffix is for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are 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. Data Sheet July 11, 2007 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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