AD623-EVAL Analog Devices Inc, AD623-EVAL Datasheet

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AD623-EVAL

Manufacturer Part Number
AD623-EVAL
Description
BOARD EVAL/DEMO R-R AMP AD623
Manufacturer
Analog Devices Inc
Type
Amplifiers: OP Ampsr
Datasheets

Specifications of AD623-EVAL

Rohs Status
RoHS non-compliant
Contents
Evaluation Board
For Use With/related Products
AD623
Lead Free Status / Rohs Status
Not Compliant
FEATURES
Accepts SOIC or PDIP packages
Configurable for dual or single supplies
Provision for optional circuitry:
GENERAL DESCRIPTION
The EVAL-AD623EB is a simple-to-use accessory for evaluating
the AD623 instrumentation amplifier. In addition to the basic
in-amp connection, circuit options enable the user to adjust the
–GUARD
Rev. 0
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.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
+GUARD
Shield driver
Adjustable offset/reference
GND2
+IN
–IN
GND1
GND
–V
+V
S
S
W2
W1
+
C11
C12
+
10µF
25V
10µF
25V
0.1µF
0.1µF
C5
C6
REMOVE W3, W4 FOR AC COUPLING
7
1
W7
4
W6
A2
100Ω
100Ω
–V
8
R2
A2
R4
AUX
6
5
3
2
W10
W8
+V
C3 0.1µF
C1 0.1µF
AUX
W4
W3
W9
W5
W15
+V
–V
NOTES
1
2
2
INSTALL FOR AC COUPLING ONLY.
TO USE GUARD DRIVER, INSTALL R5 AND R6
INSTEAD OF R
AUX
AUX
Figure 1. EVAL-AD623EB Functional Block Diagram
FUNCTIONAL BLOCK DIAGRAM
R6
R5
2
2
G
100kΩ
100kΩ
. R5 AND R6 = 0.5R
R
R3
R5
G
1
1
1
2
3
8
G
.
R
R
G
G
Evaluation Board for the AD623
offset voltage, apply an output reference, or provide shield
drivers with user supplied components. The board is shipped
with a surface mount package installed, and has an alternate
footprint for a through-hole, 8-lead DIP.
BASIC OPERATION
The AD623 converts a differential signal to single-ended with
respect to a reference. User supplied power supplies are
connected to the +V
signal is applied to the +IN and –IN pins. The output is
monitored at the OUT pin. Figure 2 shows the component
layout and location of connections.
+V
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
A3
REF
W14
S
7
4
OUT
5
C4
0.1µF
C2
0.1µF
–V
6
S
W13
W11
COMPONENTS IN SHADED AREAS
W12
ARE USER SUPPLIED
S
© 2003 Analog Devices, Inc. All rights reserved.
, –V
0.1µF
C9
AD707JN
6
S
, and GND pins, and the differential
4
A1
7
OFFSET ADJ.
–V
AUX
3
2
EVAL-AD623EB
C10
0.1 µF
R8
EXT_REF
240µA
R1
100kΩ
J500
CS2
–V
+V
OUTPUT
AUX
www.analog.com
AUX
R10
5.9kΩ 1%
R9
5.9kΩ 1%
CS2
J500
240µA
04223-0-001
C8
0.1µF
C7
0.1µF

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AD623-EVAL Summary of contents

Page 1

... The board is shipped with a surface mount package installed, and has an alternate footprint for a through-hole, 8-lead DIP. BASIC OPERATION The AD623 converts a differential signal to single-ended with respect to a reference. User supplied power supplies are connected to the +V signal is applied to the +IN and –IN pins. The output is monitored at the OUT pin ...

Page 2

... The board is shipped with W14 in the dual-supply position. To convert to single supply, place W14 in the position marked with a ground symbol. Gain Adjustment The default gain of the AD623 is unity; installing a resistor at R enables its adjustment. R may be calculated according to the G following equation, or selected from Table 100 kΩ ...

Page 3

... Offset Regulators C7–C10 0.1 µ Ceramic Capacitor A1 AD707JN Precision Op Amp CS1, CS2 J500 240 µA Current Source R9, 10 5.9 kΩ, 1% Metal Film Resistor Rev Page EVAL-AD623EB Status Not Installed Not Installed Installed Installed Not Installed Not Installed Not Installed Not Installed ...

Page 4

... ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. ORDERING GUIDE Model AD623-EVAL © 2003 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective companies. Package Description Evaluation Board C04223– ...

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