Description
The AD8244 is a precision, low power, FET input, quad unity-gain buffer that is designed to isolate very large source impedances from the rest of the signal chain.
Features
- Low power 250 µA maximum supply current per amplifier FET input 2 pA maximum input bias current at 25°C Extremely high input impedance Low noise 13 nV/√Hz voltage noise at 1 kHz 0.4 µV p-p voltage noise (0.1 Hz to 10 Hz) 0.8 fA/√Hz current noise at 1 kHz High dc precision 3 µV/°C maximum offset drift (B grade) 3 MHz bandwidth Unique pinout No leakage from inputs to supply pins Provides guarding capability Rail-to-rail output Single-supply operation Input range extends to ground Wide supply range.
AD8244_AnalogDevices.pdf
