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AD549 - Ultralow Input Bias Current Operational Amplifier

Description

The AD549 is a monolithic electrometer operational amplifier with very low input bias current.

Input offset voltage and input offset voltage drift are laser trimmed for precision performance.

Features

  • Ultralow input bias current 60 fA maximum (AD549L) 100 fA maximum (AD549K) 250 fA maximum (AD549J) Input bias current guaranteed over the common-mode voltage range Low offset voltage 0.50 mV maximum (AD549K) 1.00 mV maximum (AD549J) Low offset drift 15 μV/°C maximum (AD549K) 20 μV/°C maximum (AD549J) Low power 700 μA maximum supply current Low input voltage noise 4 μV (typ) p-p over 0.1 Hz to 10 Hz MIL-STD-883B parts available.

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Datasheet Details

Part number AD549
Manufacturer Analog Devices
File Size 1.14 MB
Description Ultralow Input Bias Current Operational Amplifier
Datasheet download datasheet AD549 Datasheet

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Full PDF Text Transcription

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Data Sheet FEATURES Ultralow input bias current 60 fA maximum (AD549L) 100 fA maximum (AD549K) 250 fA maximum (AD549J) Input bias current guaranteed over the common-mode voltage range Low offset voltage 0.50 mV maximum (AD549K) 1.00 mV maximum (AD549J) Low offset drift 15 μV/°C maximum (AD549K) 20 μV/°C maximum (AD549J) Low power 700 μA maximum supply current Low input voltage noise 4 μV (typ) p-p over 0.1 Hz to 10 Hz MIL-STD-883B parts available APPLICATIONS Electrometer amplifier Photodiode preamp pH electrode buffer GENERAL DESCRIPTION The AD549 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are laser trimmed for precision performance.
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