Product Summary

The AD549JHZ 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 . The ultralow input current of the part is achieved with Topgate tm JFET technology, a process development exclusive to Analog Devices, Inc. This technology allows fabrication of extremely low input current JFETs compatible with a standard junction isolated bipolar process. The 10 15Ω commonmode impedance, which results from the bootstrapped input stage, ensures that the input current is essentially independent of the common-mode voltage.

Parametrics

AD549JHZ absolute maximum ratings: (1)supply voltage: ±18V; (2)internal power dissipation: 500mW; (3)input voltage: ±18V; (4)storage temperature range: -65 to 125℃; (5)lead temperature: 300℃.

Features

AD549JHZ features: (1)Ultralow input bias current :250 fA maximum ; (2)Input bias current guaranteed over the common-mode:voltage range ; (3)Low offset voltage :1.00 mV maximum ; (4)Low offset drift : 20μV/°C maximum; (5)Low power :700μA maximum supply current,Low input voltage noise ; (6)4μV p-p over 0.1 Hz to 10 Hz ; (7)MIL-STD-883B parts.

Diagrams

AD549JHZ block diagram

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(USD)		 Quantity
AD549JHZ
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10-100: $11.28
100-250: $10.35
250-500: $9.85
500-1000: $9.52
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