AD549JHZ

monolithic electrometer operational amplifier, 18 V, 10 Hz, 500 mW, TO

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Price:: US $16.50~20.00 / piece [Get Latest Price]

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	US $16.50~20.00

PartNumber:: AD549JHZ

Brand:: Analog Devices - ADI | Pack: TO | D/C: 08+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
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Products Upload time: 2012-08-12

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Part Number:AD549JHZ
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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. 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 1015 Ω common-mode impedance, which results from the bootstrapped input stage, ensures that the input current is essentially independent of the common-mode voltage. The AD549JHZ is suited for applications requiring very low input current and low input offset voltage. It excels as a preamp for a wide variety of current output transducers, such as photodiodes, photomultiplier tubes, or oxygen sensors. The AD549JHZ can also be used as a precision integrator or low droop sample-and-hold. The AD549JHZ is pin compatible with standard FET and electrometer op amps, allowing designers to upgrade the performance of present systems at little additional cost.

Parametrics

AD549JHZ absolute maximum ratings: (1)Supply Voltage: ±18 V; (2)Internal Power Dissipation: 500 mW; (3)Input Voltage: ±18 V; (4)Output Short-Circuit Duration: Indefinite; (5)Differential Input Voltage: +VS and -VS; (6)Storage Temperature Range: -65℃ to +125℃; (7)Operating Temperature Range: AD549J, AD549K, AD549L: 0℃ to +70℃; (8)Lead Temperature (Soldering, 60 sec): 300℃.

Features

AD549JHZ features: (1)Ultralow input bias current: 250 fA maximum (AD549J); (2)Input bias current guaranteed over the common-mode voltage range; (3)Low offset voltage: 1.00 mV maximum (AD549J); (4)Low offset drift: 20 μV/℃ maximum (AD549J); (5)Low power: 700 μA maximum supply current; (6)Low input voltage noise: 4 μV p-p over 0.1 Hz to 10 Hz; (7)MIL-STD-883B parts available.