AD8251-EVALZ Analog Devices Inc, AD8251-EVALZ Datasheet

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AD8251-EVALZ

Manufacturer Part Number
AD8251-EVALZ
Description
BOARD EVALUATION FOR AD8251 PGA
Manufacturer
Analog Devices Inc
Series
iCMOS®r
Datasheet

Specifications of AD8251-EVALZ

Channels Per Ic
1 - Single
Amplifier Type
Instrumentation
Output Type
Single-Ended
Slew Rate
20 V/µs
-3db Bandwidth
10MHz
Operating Temperature
-40°C ~ 85°C
Current - Supply (main Ic)
4.1mA
Voltage - Supply, Single/dual (±)
5 V ~ 15 V
Board Type
Fully Populated
Utilized Ic / Part
AD8251
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output / Channel
-
FEATURES
Quick evaluation
On-board gain control switches
SMA connectors for high speed gain testing
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards as 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.
DGND
GND1
IN+
IN–
GND2
JP3
C10
TP2
TP1
R1
R2
WR
A0
A1
C5
C7
C6
DGND
C3
0.1µF
10 MHz, 20 V/μs Programmable Gain In-Amp
10
1
TP3
TP4
TP5
+V
AD8251
2
8
S
U1
–V
6
3
S
Figure 1. Schematic
5
C4
0.1µF
4
9
Evaluation Board for G = 1, 2, 4, 8,
7
W2
W1
W3
VREF
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The AD8251-EVALZ is designed to enable quick evaluation of
the AD8251 programmable gain instrumentation amplifier
(PGIA). The evaluation board includes on-board gain setting
switches to quickly demonstrate the software gain program-
mability of the AD8251. In addition, an external logic generator
can be connected to the AD8251-EVALZ SMA ports to test the
gain control of the PGIA.
SW1
HI
JP1
–V
R6
2kΩ
R4
S
SW2
R3
HI
R7
2kΩ
©2007 Analog Devices, Inc. All rights reserved.
TP7
VOUT
C8
+V
S
R8
0Ω
1
2
3
+
+V
AD8251-EVALZ
ADR392
S
U2
C1
10µF
R5
5
4
+
–V
S
C2
10µF
HI
www.analog.com
C9
0.1µF
OUT
TP6

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AD8251-EVALZ Summary of contents

Page 1

... AD8251 programmable gain instrumentation amplifier (PGIA). The evaluation board includes on-board gain setting switches to quickly demonstrate the software gain program- mability of the AD8251. In addition, an external logic generator can be connected to the AD8251-EVALZ SMA ports to test the gain control of the PGIA. W2 SW1 ...

Page 2

... AD8251-EVALZ. R1 and R2 are shorted. The shorted traces must be cut before R1 and R2 are placed on the board. OUTPUT FILTER An output filter pattern is included at the output trace of the AD8251-EVALZ. To use filter, cut the shorted traces prior to placing resistors in those locations. REFERENCE To level shift the output, a nonzero reference voltage can be applied to REF ...

Page 3

... A0 and A1. Figure 3 shows a schematic using this method, known as latched gain mode. (On the AD8251-EVALZ, remove the W1, W2, and W3 jumpers, and drive A0, A1, and WR with external logic to test this gain setting mode.) The AD8251 is in this mode when WR is held at logic high or logic low, typically 5 V and 0 V, respectively ...

Page 4

... AD8251-EVALZ ORDERING INFORMATION ORDERING GUIDE Model Package Description AD8251-EVALZ 1 Evaluation Board RoHS Compliant Part. ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB06838-0-6/07(0) ESD CAUTION Rev Page ...

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