
Intersil
Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifiers
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.
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 = 100)
• Single supply operation
- Input voltage range is rail-to-rail
- Output swings rail-to-rail
• Pb-Free (RoHS Compliant)
APPLICATIONs
• Battery- or Solar-Powered Systems
• Strain Gauges
• Current Monitors
• Thermocouple Amplifiers