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MAX4209 Evaluation Kit
Component Suppliers
SUPPLIER
IRC
KEMET Corp.
Murata Mfg. Co., Ltd.
PHONE
361-992-7900
864-963-6300
770-436-1300
WEBSITE
www.irctt.com
www.kemet.com
www.murata.com
Note: Indicate that you are using the MAX4208 or MAX4209 when contacting these component suppliers.
Quick Start
Detailed Description
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Recommended Equipment
5V, 1A-rated DC power supply
Function generator
Oscilloscope
The MAX4209 EV kit evaluates the MAX4209 instrumenta-
tion amplifier that features internally fixed gain, low offset
voltage, and low offset voltage drift. The output-voltage
range is from VSS + 100mV, to VDD - 100mV. The
MAX4209 EV kit voltage gain is fixed at 100V/V. The EV
Procedure
The MAX4209 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Verify that a shunt is installed across pins 1-4 of
jumper JU1 (on-board buffered-reference mode).
2) Verify that a shunt is installed on jumper JU2 (single-
supply operation).
3) Verify that a jumper is not installed on jumper JU3
(buffered-reference mode).
4) Set the DC power-supply output to 5V and disable
the output.
5) Set the function generator output to a 10mV P-P ,
200Hz, 0V DC offset sine wave. Terminate the func-
tion generator as needed.
6) Connect the power-supply positive output to the
VDD PCB pad on the EV kit.
kit operates from a single-supply voltage between
2.85V and 5.5V or from a dual-supply voltage providing
±1.425V to ±2.75V.
The MAX4209 EV kit can evaluate the 10V/V or 1000V/V
versions of the MAX4209 ICs and the adjustable-gain
MAX4208 IC in the 8-pin μMAX package by replacing
the MAX4209 IC (U1). Install gain-setting resistors R1
and R2 for MAX4208 evaluation.
Power Supply
The MAX4209 EV kit jumper JU2 must be configured
properly for single-supply or dual-supply operation. For
single-supply operation, a single power supply is con-
nected to VDD and GND. For dual-supply operation,
connect a positive supply to VDD, a negative supply to
VSS, and supply ground to GND. See Table 1 to config-
ure jumper JU2.
Table 1. Power-Supply Configuration
(Jumper JU2)
7) Connect the power-supply ground to the GND PCB
pad next to VDD on the EV kit.
8) Connect the function generator output across the
differential input PCB pads, IN+ and IN-.
9) Connect the IN- PCB pad to the GND PCB pad with
a wire.
SHUNT
POSITION
Installed
Not installed
VSS PIN
Connected to
GND
Not connected
EV KIT FUNCTION
Single-supply operation.
Power only VDD.
Dual-supply operation.
Power VDD and VSS.
10) Connect the oscilloscope to the OUT PCB pad and
the oscilloscope ground clip to the GND PCB pad.
11) Enable the DC power supply and the function gen-
erator.
12) Verify that the oscilloscope measures a 1V P-P ,
200Hz, 2.5V DC offset sine wave.
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