MAX4104EVKIT

19-4757; Rev 3; 10/98 MAX4104 Evaluation Kit ____________________________Features 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. ♦ 880MHz (typical) -3dB Bandwidth 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. ♦ 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 _________________________Quick Start Ordering Information PART TEMP. RANGE IC PACKAGE MAX4104EVKIT -40°C to +85°C 8 SO Component List DESIGNATION QTY DESCRIPTION C1, C3 2 10µF, 10V, 20% tantalum capacitors AVX TAJB106M010 or Sprague 293D106X0010B C2, C4 2 0.1µF 10% ceramic capacitors IN, OUT 2 SMA connectors R1, R2 2 49.9Ω, 1% resistors RF 1 22Ω, 5% resistor RG 0 Open U1 1 MAX4104ESA None 1 MAX4104 PC board None 1 MAX4104/MAX4105/MAX4304/ MAX4305 data sheet Component Suppliers SUPPLIER PHONE FAX AVX 803-946-0690 803-626-3123 Sprague 603-224-1961 603-224-1430 Note: Please indicate that you are using the MAX4104 when contacting these component suppliers. 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 supply 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 oscilloscope will be half that on the input, due to the voltage 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 possible. A continuous ground plane has been maintained under the IC, RF, and RG to reduce inductance to the signal return path. Capacitance at the inverting input pin has been minimized by reducing the feedbacktrace length and using 0805-size surface-mount feedback and gain-set resistors. ________________________________________________________________ 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 1-800-865-8769. Evaluates: MAX4104/MAX4105/MAX4304/MAX4305 ________________General Description Evaluates: MAX4104/MAX4105/MAX4304/MAX4305 MAX4104 Evaluation Kit 1 2 N.C. IN- N.C. MAX4104 VCC 8 7 RG OPEN VCC C2 0.1µF OUT 3 IN C1 10µF 10V 6 IN+ OUT R2 49.9Ω R1 49.9Ω 4 VEE C3 10µF 10V VEE N.C. 5 C4 0.1µF RF 22Ω Figure 1. MAX4104 EV Kit Schematic 2 _______________________________________________________________________________________ MAX4104 Evaluation Kit Evaluates: MAX4104/MAX4105/MAX4304/MAX4305 1.0" Figure 2. MAX4104 EV Kit Component Placement Guide— Component Side 1.0" 1.0" Figure 3. MAX4104 EV Kit PC Board Layout—Component Side Figure 4. MAX4104 EV Kit PC Board Layout—Solder Side _______________________________________________________________________________________ 3 Evaluates: MAX4104/MAX4105/MAX4304/MAX4305 MAX4104 Evaluation Kit NOTES Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1998 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.