AD549JHZ Part Information

Details for AD549JHZ by Analog Devices

Semiconductors - ICs>Amplifiers & Comparators>Operational Amplifiers - Op Amps

Part 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. 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 AD549 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 AD549 can also be used as a precision integrator or low droop sample-and-hold. The AD549 is pin compatible with standard FET and electrometer op amps, allowing designers to upgrade the performance of present systems at little additional cost. The AD549 is available in a TO-99 hermetic package. The case is connected to Pin 8, thus, the metal case can be independently connected to a point at the same potential as the input terminals, minimizing stray leakage to the case. The AD549 is available in four performance grades. The J, K, and L versions are rated over the commercial temperature range of 0°C to +70°C. The S grade is specified over the military temperature range of −55°C to +125°C and is available processed to MIL-STD-883B, Rev. C. Extended reliability plus screening is also available. Plus screening includes 168 hour burn-in, as well as other environmental and physical tests derived from MIL-STD-883B, Rev. C.

Part Downloads

Featured content from Farnell

Part 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 u03bcV/u00b0C maximum (AD549K) 20 u03bcV/u00b0C maximum (AD549J) Low power 700 u03bcA maximum supply current Low input voltage noise 4 u03bcV (typ) p-p over 0.1 Hz to 10 Hz MIL-STD-883B parts available

Part Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Bandwidth 1MHz
Slew Rate 3V/µs
Supply Voltage Range ± 5V to ± 18V
Amplifier Case Style TO-99
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range AD549 Series
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (07-Jul-2017)
Amplifer Supply Voltage ± 5V to ± 18V
Op Amp Type Low Input Bias
RoHS Compliant

Alternative Part Descriptions

  • OP Amp Single GP 18V | RS Components
  • Operational Amplifier, Single, 1 MHz, 1, 3 V/ s, 5V to 18V, TO-99, 8 RoHS Compliant: Yes | Newark Electronics
  • AMPLIFIER - OP AMPS | Richardson RFPD

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD549JHZ?

Additional datasheets, footprints and schematics for AD549JHZ are listed in our Part Details tab. You can also find the AD549JHZ image and similar parts on this details page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for AD549JHZ in the Pricing & Inventory tab next to part details. You can view AD549JHZ price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does AD549JHZ fall under?

The AD549JHZ is listed under Semiconductors - ICs > Amplifiers & Comparators > Operational Amplifiers - Op Amps.

Can I view similar or alternative parts?

You can view similar parts to AD549JHZ when available in the Operational Amplifiers - Op Amps range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the AD549JHZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD549JHZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

Which authorised distributors for AD549JHZ have stock available?

Authorised distributors including RS Components, Newark Electronics and Richardson RFPD have stock available or on a lead time for AD549JHZ.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for AD549JHZ often in real-time on the comparison pages.

What if I can't find stock of AD549JHZ?

You can fill out our help required form which you can use to request a quote for AD549JHZ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

Viewing Distributors for AD549JHZ

Loading...
Loading Results for AD549JHZ