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AD8251-EVALZ User Guide
UG-925
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the AD8251 10 MHz, 20 V/μs, G = 1, 2, 4, 8 iCMOS Programmable
Gain Instrumentation Amplifier
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. A | Page 1 of 6
FEATURES
Does not require software to operate
Runs from dual supply (±7 to ±15 V)
Gain selection through DIP switches
Numerous test points for external stimulus
Signal paths use SMA connectors
EQUIPMENT NEEDED
Dual-output, programmable power supply (±15 V at +50 mA)
Dual-output function generator
Oscilloscope
Banana to grabber test leads
BNC to SMA coaxial cables
A small, flat head screw driver or similar device to set DIP
switches
DOCUMENTS NEEDED
AD8251 data sheet
GENERAL DESCRIPTION
The AD8251-E VA L Z user guide details how the AD8251-
EVAL Z evaluation board
1
evaluates the AD8251. The user guide
outlines the basic connections required to evaluate the AD8251 and
describes the switch settings available to obtain desired outputs.
Many configuration options are available on the AD8251-
EVAL Z evaluation board that allow additional input filtering and
output filtering if there is a noisy environment (see Figure 6). The
logic control is covered with an on-board 5.0 V regulator and a
dual in-line package (DIP) switch. However, these logic signals
can be overridden and clipped on by way of the on-board test
points if the DIP switch has each position set to open.
1
If the purchased AD8251-EVALZ evaluation board is a version released prior
to 2015 (printed on the board), refer to the AD8251-EVALZ (Rev. 0) user guide
at https://wiki.analog.com/resources/eval/ad8250-evaluation-guide.
AD8251-EVALZ EVALUATION BOARD PHOTOGRAPH
Figure 1.
06838-001
