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Description:Low Noise, Low Drift FET Op Amp
Manufacturer:Analog Devices
Datasheet:PDF (439K).
Click here to download *)

The AD645 is a low noise, precision FET input op amp. It offers the pico amp level input currents of a FET input device coupled with offset drift and input voltage noise comparable to a high performance bipolar input amplifier. The AD645 has been improved to offer the lowest offset drift in a FET op amp, 1 V/C. Offset voltage drift is measured and trimmed at wafer level for the lowest cost possible. An inherently low noise architecture and advanced manufacturing techniques result in a device with a guaranteed low input voltage noise of 2 V p-p, 0.1 Hz to 10 Hz. This level of dc performance along with low input currents make the AD645 an excellent choice for high impedance applications where stability is of prime concern.

Click here to download AD645S Datasheet
Click here to download AD645S Datasheet
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