EL8173

DATASHEET EL8170, EL8173 Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifiers FN7490 Rev 8.00 August 11, 2015 The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for single supply operation over the +2.4V to +5.5V range. 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 EL8170 is compensated for a gain of 100 or more, and the EL8173 is compensated for a gain of 10 or more. The EL8170 and EL8173 have bipolar input devices for best offset and 1/f noise performance. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. The EL8170 and EL8173 input range includes ground to slightly above positive rail. The output stage swings to ground and positive supply (no pull-up or pull-down resistors are needed). Pin Configurations EL8170 (8 LD SOIC) TOP VIEW DNC 1 +- 8 FB+ IN- 2 +-  7 V+ IN+ 3 6 VOUT V- 4 5 FB- EL8173 (8 LD SOIC) TOP VIEW DNC 1 +- 8 FB+ IN- 2 +-  7 V+ IN+ 3 6 VOUT V- 4 5 FB- Features 95µA maximum supply current Maximum offset voltage - 200µV (EL8170) - 1000µV (EL8173) Maximum 3nA input bias current 396kHz -3dB bandwidth (G = 10) 192kHz -3dB bandwidth (G =...