EVAL-INAMP-82RMZ【PDF 1/8 页】BOARD EVAL FOR AD8220 MSOP

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Evaluation Boards for the AD620 Series and

and the AD8220 Series Instrumentation Amplifiers

EVAL-INAMP-62RZ/82RZ/82RMZ

FEATURES

3 generic, easy-to-use PC boards

Support several related in-amp products

Simple gain setting

Decoupled supply lines

EVAL-INAMP-62RZ board

Tests the AD620, AD621, AD622, and AD623

Configurable for dual or single supplies

Provision for optional circuitry

Shield driver

Adjustable offset/reference

EVAL-INAMP-82RZ and EVAL-INAMP-82RMZ boards

Test the AD8220, AD8221, and AD8228

Two package variations available: SOIC and MSOP

Solder jumper

SMA/SMB outline

APPLICATIONS

Quick, easy product characterization

Interface to other evaluation tools

Breadboard custom application circuits

GENERAL DESCRIPTION

This data sheet describes three generic evaluation boards used

to test several related in-amp products. A general description of

each board is provided in this section. Full details on each of the

devices are provided in the device data sheets available from

Analog Devices, Inc., and should be consulted in conjunction

with this data sheet.

EVAL-INAMP-62RZ ( SOIC or PDIP)

The EVAL-INAMP-62RZ is an easy-to-use accessory for eval-

uating the AD620 series of instrumentation amplifiers. This

board test the AD620, AD621, AD622, and AD623 devices. In

addition to the basic in-amp connection, circuit options enable

the user to adjust the offset voltage, apply an output reference,

or provide shield drivers with user-supplied components. The

board is shipped with an assortment of surface-mount packages.

The board also has an alternative footprint for a through-hole,

8-lead PDIP.

Note that the AD621 CMRR performance degrades at gains

of 100 shen using this board due to the high performance of

the AD621.

Rev. A

Evaluation boards are only intended for device evaluation and not for production purposes.

Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or

statutory including, but not limited to, any implied warranty of merchantability or fitness for a

particular purpose. No license is granted by implication or otherwise under any patents or other

intellectual property by application or use of evaluation boards. Information furnished by Analog

Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog

Devices for its use, nor for any infringements of patents or other rights of third parties that may result

from its use. Analog Devices reserves the right to change devices or specifications at any time

without notice. Trademarks and registered trademarks are the property of their respective owners.

Evaluation boards are not authorized to be used in life support devices or systems.

To get started with this evaluation board, see the Quick Start for

the EVAL-INAMP-62RZ section.

EVAL-INAMP-82RZ (SOIC)

The EVAL-INAMP-82RZ offers users the option of evaluating

the AD8221 and AD8228 instrumentation amplifiers indivi-

dually or with other products in common applications. As

with the AD620 to AD623 board, this board is shipped with

an assortment of surface-mount packages. The evaluation board

is arranged so that users can easily adjust the gain resistor and

reference jumper. The board offers an SMA/SMB outline at

the output.

Users can add their own connector to interface the evaluation

board with complementary tools, such as an analog-to-digital

converter (ADC) evaluation board, available from Analog

Devices. The board permits easy wiring of active filters, line

drives, and ADCs, right on the board, thus extending its use as

a development tool.

To get started with this evaluation board, see the Quick Start for

the EVAL-INAMP-82RZ and EVAL-INAMP-82RMZ section

of this data sheet.

EVAL-INAMP-82RMZ (MSOP)

The EVAL-INAMP-82RMZ board is similar to the EVAL-

INAMP-82RZ board with one difference: the EVAL-INAMP-

82RMZ board is configured for the MSOP package. This covers

the AD8220, AD8221, and AD8228 products. The EVAL-

INAMP-82RMZ board is shipped with an assortment of MSOP

surface-mount ICs.

To get started, see the Quick Start for the EVAL-INAMP-82RZ

and EVAL-INAMP-82RMZ section of this data sheet.

BASIC OPERATION

The AD620 and AD8220 series in-amps convert a differential input

signal to a single-ended output signal, with respect to a reference

voltage. User-supplied power supplies connect +V S , ?V S , and

ground to pins of the IC . The differential signal is applied to the

+IN and ?IN pins of the in-amp, while the signal output appears

at the OUTPUT pin of the in-amp.

Figure 2 shows the component layout and the location of connec-

tions for the EVAL-INAMP-62RZ (AD620 Series) PC board.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

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