AD8244 Datasheet Precision FET Input Quad Buffer

Manufacturer: Analog Devices

Overview: Data Sheet.

AD8244 precision fet input quad buffer by Analog Devices - Datasheet Preview

Datasheet Details

Part number	AD8244
Manufacturer	Analog Devices
File Size	526.78 KB
Description	Precision FET Input Quad Buffer
Download	AD8244 Download (PDF)

General 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.

The 2 pA maximum bias current, near zero current noise, and 10 TΩ input impedance introduce almost no error, even with source impedance well into the megaohms.

Many traditional operational amplifier pinouts have a supply pin that is next to the noninverting input.

Key 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.

More Datasheets from Analog Devices

Part Number	Description
AD824	FET-Input Op Amp
AD8240	LED Driver/Monitor
AD820	FET Input Op Amp
AD8200	Single Supply Difference Amplifier
AD8202	Single-Supply Difference Amplifier
AD8203	Single-Supply Difference Amplifier
AD8205	Single-Supply 42 V System Difference Amplifier
AD8206	Bidirectional Current Shunt Amplifier
AD8207	Bidirectional Difference Amplifier
AD8208	Precision Difference Amplifier