DATASHEET EL8171, EL8172 FN6293 Rev 6.00 Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifiers October 9, 2015 The EL8171 and EL8172 are micropower instrumentation Features amplifiers optimized for single supply operation over the 95A maximum supply current +2.4V to +5.5V range. Inputs and outputs can operate rail-to-rail. As with all instrumentation amplifiers, a pair of Maximum input offset voltage inputs provide very high common-mode rejection and are - 300V (EL8172) completely independent from a pair of feedback terminals. - 1500V (EL8171) The feedback terminals allow zero input to be translated to 50pA maximum input bias current any output offset, including ground. A feedback divider controls the overall gain of the amplifier. 450kHz -3dB bandwidth (G = 10) The EL8172 is compensated for a gain of 100 or more, and 170kHz -3dB bandwidth (G = 100) the EL8171 is compensated for a gain of 10 or more. The Single supply operation EL8171 and EL8172 have PMOS input devices that provide - Input voltage range is rail-to-rail sub-nA input bias currents. - Output swings rail-to-rail The amplifiers can be operated from one lithium cell or two - Ground sensing Ni-Cd batteries. The EL8171 and EL8172 input range goes Pb-free (RoHS compliant) from below ground to slightly above positive rail. The output stage swings completely to ground (ground sensing) or Applications positive supply - no pull-up or pull-down resistors are Battery- or solar-powered systems needed. Strain gauges Pinout Current monitors EL8171, EL8172 (8 LD SOIC) Thermocouple amplifiers TOP VIEW Ordering Information + DNC 1 8 FB+ - PART - IN- 2 7 V+ NUMBER PART PACKAGE PKG. + (Note) MARKING (Pb-free) DWG. IN+ 3 6 VOUT EL8171FSZ*(No 8171FSZ 8 Ld SOIC MDP0027 V- 4 5 FB- longer available, recommended replacement: EL8170FSZ-T7) EL8172FSZ* 8172FSZ 8 Ld SOIC MDP0027 *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. FN6293 Rev 6.00 Page 1 of 14 October 9, 2015EL8171, EL8172 Absolute Maximum Ratings (T = +25C) Thermal Information A Supply Voltage, V 5.5V Thermal Resistance (C/W) + JA Differential Input Current 5mA 8 Ld SOIC Package 122 Differential Input Voltage (EL8172) 0.5V Output Short-Circuit Duration .Indefinite Differential Input Voltage (EL8171) 1.0V Ambient Operating Temperature .-40C to +125C ESD Rating Storage Temperature -65C to +150C Human Body Model .3kV Pb-Free Reflow Profile .see link below