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1 ® FN6154.4 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, 2008. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL28156, ISL28256 39µA Micropower Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Low Input Bias Current Op Amps The ISL28156 and ISL28256 are micropower precision operational amplifiers optimized for single supply operation at 5V and can operated down to 2.4V. These devices 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 0.5V above a 5.0V supply (0.25 for a 2.5V supply) and to within 10mV from ground. The output operation is rail-to-rail. The 1/f corner of the voltage noise spectrum is at 1kHz. This results in low frequency noise performance, which can only be found on devices with an order of magnitude higher than the supply current. ISL28156 and ISL28256 can be operated from one lithium cell or two Ni-Cd batteries. The input range includes both positive and negative rail. The output swings to both rails. Features • 39µA typical supply current • 5nA max input bias current • 250kHz gain bandwidth product (AV = 1) • 2.4V to 5.5V single supply voltage range • Rail-to-rail input and output • Enable pin (ISL28156 only) • Pb-free (RoHS compliant) Applications • Battery- or solar-powered systems • 4mA to 20mA current loops • Handheld consumer products • Medical devices • Sensor amplifiers • ADC buffers • DAC output amplifiers Ordering Information PART NUMBER (Note) PART MARKING PACKAGE (Pb-free) PKG. DWG. # ISL28156FHZ-T7* GABV 6 Ld SOT-23 MDP0038 ISL28156FBZ 28156 FBZ 8 Ld SOIC MDP0027 ISL28156FBZ-T7* 28156 FBZ 8 Ld SOIC MDP0027 Coming Soon ISL28256FBZ 28256 FBZ 8 Ld SOIC MDP0027 Coming Soon ISL28256FBZ-T7* 28256 FBZ 8 Ld SOIC MDP0027 Coming Soon ISL28256FUZ 8256Z 8 Ld MSOP MDP0043 Coming Soon ISL28256FUZ-T7* 8256Z 8 Ld MSOP MDP0043 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. Pinouts ISL28156 (6 LD SOT-23) TOP VIEW ISL28156 (8 LD SOIC) TOP VIEW ISL28256 (8 LD SOIC) TOP VIEW ISL28256 (8 LD MSOP) TOP VIEW 1 2 3 6 4 5 +- OUT V- IN+ V+ ENABLE IN- 1 2 3 4 8 7 6 5 - + NC IN- IN+ ENABLE V+ OUT V- NC 1 2 3 4 8 7 6 5 OUT_A IN-_A IN+_A V+ OUT_B IN-_B V- IN+_B + - +- 1 2 3 4 8 7 6 5 OUT_A IN-_A IN+_A V+ OUT_B IN-_B V- IN+_B + - +- Data Sheet February 11, 2008 |
