AD8244ARMZ Low Input Bias Current Op Amps (≤100 pA) by Analog Devices

Status: Production
Series: AD8244
RoHS: Compliant
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The AD8244 is a precision, low power, FET input, quad unity-gain buffer that is designed to isolate very large source impedances from the rest of the signal chain. The 2 pA maximum bias current, near zero current noise, and 10 TΩ input impedance introduce almost no error, even with source impedance well into the megaohms.Many traditional operational amplifier pinouts have a supply pin that is next to the noninverting input. A guard trace must be routed between these pins to avoid leakage currents much larger than the bias current of a FET input op amp. Guard traces can be routed between pins for large packages, such as DIP or even SOIC; however, the board area consumed by these packages is prohibitive for many modern

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Prices starting from US$2.96

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Features

Low power
250 μA maximum supply current per amplifier
FET input
2 pA maximum input bias current at 25°C
Extremely high input impedance
Low noise
13 nV/√Hz voltage noise at 1 kHz
0.4 μV p-p voltage noise
(0.1 Hz to 10 Hz)
0.8 fA/√Hz current noise at 1 kHz
High dc precision
3 μV/°C maximum offset drift
(B grade)
3 MHz bandwidth
Unique pinout
No leakage from inputs to supply pins
Provides guarding capability
Rail-to-rail output
Single-supply operation
Input range extends to ground
Wide supply range
Single-supply: 3 V to 36 V
Dual-supply: ±1.5 V to ±18 V 
Available in a compact 10-lead MSOP

Alternative Descriptions

JFET Quad Buffer AFE | Analog Devices
Precision FET Input Quad Buffer uSOIC10 | RS
Op-Amp, 3.6Mhz, -40 To 85Deg C, Msop-10 | Newark Electronics
OP-AMP, 3.6MHZ, -40 TO 85DEG C, MSOP-10 | element14
AMPLIFIER - OP AMPS | Richardson RFPD


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD8244ARMZ?

Additional datasheets, footprints and schematics for AD8244ARMZ are listed on our Part Details page. You can also find images and similar parts to AD8244ARMZ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for AD8244ARMZ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AD8244ARMZ price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does AD8244ARMZ fall under?

The AD8244ARMZ is listed under Low Input Bias Current Op Amps (≤100 pA).

Can I view similar or alternative parts?

You can view similar parts to AD8244ARMZ when available in the Low Input Bias Current Op Amps (≤100 pA) 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 AD8244ARMZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD8244ARMZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD8244ARMZ have stock available?

Authorised distributors including Analog Devices, Chip One Stop, RS, Newark Electronics and element14 have stock available or on a lead time for AD8244ARMZ.

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

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