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EL8171IS Datasheet(PDF) 1 Page - Intersil Corporation |
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EL8171IS Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 11 page 1 ® FN6293.1 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. 2005, 2006. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. EL8171, EL8172 Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifiers The EL8171 and EL8172 are micropower instrumentation amplifiers optimized for operation at 2.9V to 5V single supplies. Inputs and outputs can operate rail-to-rail. As with all instrumentation amplifiers, a pair of inputs provide very high common-mode rejection and are completely independent from a pair of feedback terminals. The feedback terminals allow zero input to be translated to any output offset, including ground. A feedback divider controls the overall gain of the amplifier. The EL8172 is compensated for a gain of 100 or more, and the EL8171 is compensated for a gain of 10 or more. The EL8171 and EL8172 have PMOS input devices that provide sub-nA input bias currents. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. The EL8171 and EL8172 input range goes from below ground to slightly above positive rail. The output stage swings completely to ground or positive supply - no pull-up or pull-down resistors are needed. Pinout EL8171, EL8172 (8 LD SO) TOP VIEW Features • 78µA maximum supply current • Maximum input offset voltage - 300µV (EL8172) - 1000µV (EL8171) • 200pA maximum input bias current • 3µV/°C offset voltage drift • 450kHz -3dB bandwidth (G = 10) • 170kHz -3dB bandwidth (G = 100) • 0.5V/µs slew rate • Single supply operation - Input voltage range is rail-to-rail - Output swings rail-to-rail • Output sources and sinks ±29mA load current • 0.2% gain accuracy • Pb-free plus anneal available (RoHS compliant) Applications • Battery- or solar-powered systems • Strain gauges • Current monitors • Thermocouple amplifiers 1 2 3 4 8 7 6 5 Σ + - + - ENABLE IN- IN+ VS- FB+ VS+ FB- OUT Data Sheet March 9, 2006 |
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