19-0462; Rev 0; 12/95 MAX4100 Evaluation Kit ____________________Component List DESIGNATION QTY DESCRIPTION U1 1 Maxim MAX4100ESA C1, C6 2 10µF, 10V, 20% tantalum capacitors AVX TAJB106M010 or Sprague 293D106X0010B C2, C5 2 0.1µF, 10% ceramic capacitors Vitramon VJ1206Y104KXX C3, C4 2 1000pF, 10% ceramic capacitors Vitramon VJ1206Y102KXX R1, R2 2 75Ω, 5% resistors RF 1 24Ω, 5% resistor IN, OUT 2 SMA connectors None 1 High-frequency-amplifier PC board None 1 MAX4100/MAX4101 data sheet None 1 Shunt J1 1 3-pin jumper SUPPLIER PHONE (803) 946-0690 (603) 224-1961 (203) 268-6261 ♦ 500MHz Unity-Gain Bandwidth ♦ Optional Adjustable Gain ♦ Fully Assembled and Tested ______________Ordering Information PART MAX4100EVKIT-SO TEMP. RANGE +25°C BOARD TYPE Surface Mount Note: To evaluate the MAX4101, request a MAX4101ESA free sample. _____________________________Quick Start The MAX4100 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 ±5V. Connect these supplies to the corresponding pads marked V+ and V-. Connect the power-supply ground to the pad marked GND. 2) Verify that the J1 shunt is across pins 2 and 3 of the 3-pin jumper J1. 3) Apply a signal no greater than ±3.5VPK (16dBm) to the SMA connector marked IN. 4) Connect the output marked OUT to an oscilloscope through a terminated 75Ω cable. 5) Turn on the power supply and verify the output signal on the oscilloscope. _______________Detailed Description Voltage-Gain Adjustment ______________Component Suppliers AVX Sprague Vishay/Vitramon ____________________________Features FAX (803) 626-3123 (603) 224-1430 (203) 452-5670 The MAX4100’s gain can be adjusted with the following minor modifications to the EV board: 1) Referring to Table 1, select the feedback (R F) and gain-setting (RG) resistors with the desired gain. 2) Install RF and RG. Table 1. Gain-Setting Resistors RF (Ω) RG (Ω) SMALL-SIGNAL BANDWIDTH (MHz) 1 24 Open 500 2 200 200 210 MAX4101 5 200 51 45 MAX4101 10 200 30 20 DEVICE GAIN MAX4100 MAX4101 ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 Evaluates: MAX4100/MAX4101 _______________General Description The MAX4100 evaluation kit (EV kit) simplifies evaluation of the MAX4100 high-speed amplifier. The EV kit circuit demonstrates the MAX4100 in the noninverting unity-gain configuration. RF-style connectors (SMA) and 75Ω terminating resistors are included for video test equipment compatibility. The EV kit comes with the MAX4100 installed. To evaluate the MAX4101, simply order a free sample (MAX4101ESA), replace the MAX4100 with the MAX4101 on the EV board, and change the gainsetting resistors for the desired gain. The minimum closed-loop gain for the MAX4101 is +2V/V or -1V/V. Evaluates: MAX4100/MAX4101 MAX4100 Evaluation Kit Layout Considerations V+ The MAX4100 EV kit layout has been optimized for high-speed signals, with careful attention given to grounding, power-supply bypassing, and signal-path layout. The small, surface-mount, ceramic bypass capacitors C2–C5 have been placed as close to the MAX4100 supply pins as possible. The unused pins have been grounded to prevent unwanted noise from coupling into the circuit. Refer to the Layout and PowerSupply Bypassing section of the MAX4100 data sheet for details. Shutdown Control The MAX4100/MAX4101 EV kit is a standard EV kit used for many of Maxim’s high-speed op amps. As a result, a shutdown (SHDN) function is incorporated on the EV kit, but does not apply to the MAX4100/ MAX4101. Because the shutdown control is not applicable to the MAX4100/MAX4101, verify that a shunt is connected to pins 2 and 3 of jumper J1. C1 10µF, 10V RF 24Ω RG OPEN C2 0.1µF 2 C3 1000pF 7 U1 MAX4100 3 IN OUT 6 5 R2 75Ω 4 8 1 R1 75Ω V+ SHDN 1 2 J1 VC4 1000pF GND C5 0.1µF 3 C6 10µF, 10V CAPACITORS C1, C3, C4, AND C6 ARE OPTIONAL. Figure 1. MAX4100 EV Kit Schematic Figure 2. MAX4100 EV Kit Component Placement Guide— Component Side 2 Figure 3. MAX4100 EV Kit Component Placement Guide— Solder Side _______________________________________________________________________________________ MAX4100 Evaluation Kit Evaluates: MAX4100/MAX4101 Figure 4. MAX4100 EV Kit PC Board Layout—Component Side Figure 5. MAX4100 EV Kit PC Board Layout—Solder Side V+ C1 IN RG RF C2 R1 2 C3 7 OUT U1 6 MAX4100 3 8 5 R2 4 1 VC4 GND C5 C6 Figure 6. Inverting Schematic (for PCB Layout of Figures 7–10)* * The Inverting Gain Configuration layouts and schematic are shown for reference only. The PC board supplied does not include the inverting configuration. _______________________________________________________________________________________ 3 Evaluates: MAX4100/MAX4101 MAX4100 Evaluation Kit Figure 7. Inverting Gain Configuration, Component Placement Guide—Component Side* Figure 8. Inverting Gain Configuration, Component Placement Guide—Solder Side* Figure 9. Inverting Gain Configuration, PC Board Layout— Component Side* Figure 10. Inverting Gain Configuration, PC Board Layout— Solder Side* * The Inverting Gain Configuration layouts and schematic are shown for reference only. The PC board supplied does not include the inverting configuration. 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 © 1995 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.