19-1281; Rev 0; 8/97
MAX4 2 2 3 Eva lu a t io n Kit
Evluates:3/MAX24
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ 1GHz -3dB Bandwidth
The MAX4223 evaluation kit (EV kit) simplifies evalua-
tion of the 1GHz, low-power MAX4223 current-feed-
back amplifier. The EV kit circuit demonstrates the
MAX4223 in the noninverting unity-gain configuration.
RF-style connectors (SMA) and 50Ω terminating resis-
tors are included for test equipment compatibility.
♦ 300MHz 0.1dB Gain Flatness
♦ 1100V/µs Slew Rate
♦ ±5V Supply Operation
The MAX4223 EV kit uses a PC board design optimized
for high-frequency amplifiers. This board can also be
used to evaluate the MAX4224 and other Maxim ampli-
fiers that share the same pinout .
♦ Optional Adjustable Gain
♦ High-Impedance Shutdown Mode
♦ Fully Assembled and Tested
______________Ord e rin g In fo rm a t io n
____________________Co m p o n e n t Lis t
DESIGNATION QTY
DESCRIPTION
PART
TEMP. RANGE
BOARD TYPE
C1, C2
2
0.1µF, 10% ceramic capacitors
MAX4223EVKIT-SO
-40°C to +85°C
Surface Mount
10µF, 10V, 20% tantalum capacitors
AVX TAJB106M010 or
Note: To evaluate the MAX4224, request a MAX4224ESA free
sample.
C3, C4
2
Sprague 293D106X0010B
R1, R2
RF
2
1
0
2
1
1
1
1
1
49.9Ω, 1% resistors
560Ω, 5% resistor
Open
_________________________Qu ic k S t a rt
The MAX4223 EV kit is fully assembled and tested.
Follow these steps to verify board operation.
RG
IN, OUT
U1
SMA connectors
MAX4223ESA
3-pin header
1) The circuit requires supply voltages of ±2.85V to
±5.5V. For evaluation purposes, connect a +5V sup-
ply to the pad labeled VCC and a -5V supply to the
pad labeled VEE. Connect the power-supply ground
to the pad labeled GND.
JU1
None
None
None
Shunt for JU1
PC board
MAX4223 data sheet
2) Verify that the shunt is across pins 1 and 2 of jumper
JU1.
3) Connect the output labeled OUT to an oscilloscope
input. For best performance, terminate the output
with a 50Ω load.
______________Co m p o n e n t S u p p lie rs
4) Turn on the power supply. Apply a signal of ±2.5V
maximum to the SMA connector labeled IN.
SUPPLIER
AVX
Sprague
PHONE
FAX
(803) 946-0690
(603) 224-1961
(803) 626-3123
(603) 224-1430
5) Verify the output signal on the oscilloscope.
Note: When using a 50Ω-terminated oscilloscope input,
the output amplitude observed will be half that of the
input, due to the voltage divider formed by the 49.9Ω
back-terminating resistor (R1) and the oscilloscope
input termination impedance.
Note: Please indicate that you are using the MAX4223 when
contacting these component suppliers.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
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