________________General Description
The MAX4104 evaluation kit (EV kit) simplifies evaluation
of the MAX4104 ultra-high-speed, low-noise, 880MHz
amplifier. The EV kit circuit demonstrates the MAX4104
in the noninverting unity-gain configuration. RF-style
connectors (SMA) and 50Ω terminating resistors are
included for test equipment compatibility.
The MAX4104 EV kit can also be used to evaluate the
MAX4105, MAX4304, and MAX4305. Simply order a
free sample of the appropriate part (MAX4105ESA,
MAX4304ESA, or MAX4305ESA), replace the IC on the
EV board, and change the gain-setting resistors for the
desired gain. Refer to the MAX4104/MAX4105/
MAX4304/MAX4305 data sheet for suggested resistor
values.
____________________________Features
♦ 880MHz (typical) -3dB Bandwidth
♦ 100MHz 0.1dB Gain Flatness
♦ 2.1nV/√
Hz Voltage Noise Density
♦ 400V/µs Slew Rate
♦ ±70mA Output Current Drive
♦ -88dBc SFDR (at 50MHz)
♦ Fully Assembled and Tested Surface-Mount
Board
Evaluates: MAX4104/MAX4105/MAX4304/MAX4305
MAX4104 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
QTY DESCRIPTION
C1, C3 2
C2, C4 2
IN, OUT 2 SMA connectors
R1, R2 2
R
F
1 22Ω, 5% resistor
R
G
0
U1 1
None 1 MAX4104 PC board
None 1
MAX4104/MAX4105/MAX4304/
MAX4305 data sheet
49.9Ω, 1% resistors
0.1µF 10% ceramic capacitors
10µF, 10V, 20% tantalum capacitors
AVX TAJB106M010 or
Sprague 293D106X0010B
SUPPLIER PHONE FAX
AVX 803-946-0690 803-626-3123
DESIGNATION
Open
MAX4104ESA
Sprague 603-224-1961 603-224-1430
PART
MAX4104EVKIT -40°C to +85°C
TEMP. RANGE IC PACKAGE
8 SO
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-865-8769.
_________________________Quick Start
The MAX4104 EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not
turn on the power supply until all connections are
completed.
1) The circuit requires supply voltages of ±3.5V 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
grounds to the pad marked GND.
2) Connect the output marked OUT to an oscilloscope
through a terminated 50Ω cable.
3) Turn on the power supply. Apply a signal of ±3.4V
maximum to the SMA connector marked IN.
4) Verify the output signal on the oscilloscope.
Note: when using a 50Ω terminated oscilloscope
input, the output amplitude observed on the oscillo-
scope will be half that on the input, due to the volt-
age divider formed by the 49.9Ω back-terminating
resistor (R2) and the oscilloscope input termination
impedance.
_____________Layout Considerations
The MAX4104 EV kit layout has been optimized for
high-speed signals and low distortion, with careful
attention given to grounding, power-supply bypassing,
and signal-path layout. The small, surface-mount,
ceramic bypass capacitors C2 and C4 have been
placed as close to the MAX4104 supply pins as possi-
ble. A continuous ground plane has been maintained
under the IC, R
F
, and R
G
to reduce inductance to the
signal return path. Capacitance at the inverting input
pin has been minimized by reducing the feedback-
trace length and using 0805-size surface-mount feed-
back and gain-set resistors.
Note: Please indicate that you are using the MAX4104 when
contacting these component suppliers.
Ordering Information
Component List
Component Suppliers
19-4757; Rev 3; 10/98
