AD8428ARZ Instrumentation Amplifiers by Analog Devices

Status: Production
Series: AD8428
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The AD8428 is an ultra-low noise instrumentation amplifierdesigned for accurately measuring tiny, high-speed signals. Itdelivers industry-leading gain-accuracy, noise and bandwidth.All gain setting resistors for the AD8428 are internal to the partand precisely matched. Care is taken in both interconnects andsymmetry. This results in excellent gain drift and quick settlingto the final gain value after the part is powered on.The high CMRR of the AD8428 prevents unwanted signalsfrom corrupting the acquisition. The part’s pin-out is designedto avoid parasitic capacitance mismatches that can degradeCMRR at high frequencies.The AD8428 is one of the fastest instrumentation amplifiersavailable. The circuit architecture is designed for highbandwidth at high gain: it uses current feedback topology forthe initial pre-amp gain stage of 200, followed by a differenceamplifier stage of 10. This results in a 3.5 MHz bandwidth at again of 2000, for an equivalent gain-bandwidth product of 7 GHz.The AD8428 pinout allows access to internal nodes between thefirst and second stage. This feature can be useful to modify DCand AC parameters between the two amplification stages.The AD8428 performance is specified over the industrialtemperature range of −40°C to +85°C. It is available in an 8-leadplastic SOIC package.

Where to Buy

Prices starting from US$9.50

Distributor Stock
Logo for Chip One Stop
Chip One Stop
from US$9.50
55
in stock
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Logo for Newark Electronics
Newark Electronics
from US$15.81
7
in stock
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Logo for element14
element14
from US$12.99
7
in stock
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Logo for Farnell
Farnell
from US$12.30
7
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$11.07
-
Buy Now

Features

Fixed gain of 2000
Access to internal nodes provides flexibility
Low noise: 1.5 nV/√Hz input voltage noise
High accuracy dc performance
Gain drift: 10 ppm/°C
Offset drift: 1 μV/°C
Gain accuracy: 0.2%
CMRR: 130 dB min
Excellent ac specifications
Bandwidth: 3.5 MHz
Slew rate: 40 V/μs
Power supply range:
±4 V to ±18 V
8-pin SOIC package
ESD protection >5000 V (HBM)
Temperature range for specified performance:
−40°C to +85°C
Operational up to 125°C
Download AD8428-KGD Data Sheet
Available As Known Good Die and fully guaranteed to data sheet specifications

Alternative Descriptions

Instrumentation Amp, 3.5Mhz, Nsoic | Newark Electronics
INSTRUMENTATION AMP, 3.5MHZ, NSOIC | element14
AMPLIFIER - SPECIAL PURPOSE | Richardson RFPD


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD8428ARZ?

Additional datasheets, footprints and schematics for AD8428ARZ are listed on our Part Details page. You can also find images and similar parts to AD8428ARZ on this page.

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What category does AD8428ARZ fall under?

The AD8428ARZ is listed under Instrumentation Amplifiers.

Can I view similar or alternative parts?

You can view similar parts to AD8428ARZ when available in the Instrumentation Amplifiers 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 AD8428ARZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD8428ARZ RoHS compliant?

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

Which authorised distributors for AD8428ARZ have stock available?

Authorised distributors including Chip One Stop, Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for AD8428ARZ.

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