Evaluates: MAX4206/MAX4207 19-3397 Rev 0 8/04 MAX4206 Evaluation Kit General Description Features The MAX4206 evaluation kit (EV kit) is a fully assembled +2.7V to +11V Single-Supply Operation or 2.7V and tested surface-mount circuit board that demon- to 5.5V Dual-Supply Operation strates the MAX4206 logarithmic amplifier. The MAX4206 Selectable 10nA/100nA/1A/10A On-Board computes the log ratio of an input current relative to a reference current and provides a corresponding voltage Reference Current output with a default 0.25V/decade scale factor. The EV Adjustable Output Scale Factor kit operates from a single +2.7V to +11V supply or from Surface-Mount Construction dual 2.7V to 5.5V supplies, with the ability to select one of four reference currents. Fully Assembled and Tested The MAX4206 EV kit can be used to evaluate the MAX4207 by changing the IC and the input RC networks Ordering Information R1, R2, C7, and C8. PART TEMP RANGE PIN PACKAGE 16 Thin QFN-EP* MAX4206EVKIT 0C to +70C (4mm x 4mm) *EP = Exposed paddle. Note: To evaluate the MAX4207, order a MAX4207ETE free sample with the MAX4206EVKIT. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 10F 20%, 16V X5R ceramic 10k 0.1%, precision chip C1 1 capacitor (1206) resistors (0603) R6R9 4 TDK C3216X5R1C106M IRC PCF-W0603R-03-1002-B or Vishay P0603K1002BB 10F 20%, 6.3V X5R ceramic capacitor (0805) 4.99M 0.5%, precision chip C2 1 Taiyo Yuden JMK212BJ106MG or resistor (0805) R10 1 TDK C2012X5R0J106M IRC CR0805F4M99D or Vishay D11P10049940.5PN 0.1F 10%, 25V X7R ceramic capacitors (0603) C3C6 4 499k 0.5%, precision chip TDK C1608X7R1E104K resistor (0805) R11 1 IRC PCF-W0805R-03-4993-D or 100pF 5%, 50V C0G ceramic Vishay D11P10049930.5PN capacitors (0603) C7, C8 2 Murata GRM1885C1H101J or 49.9k 0.5%, precision chip TDK C1608C0G1H101J resistor (0603) R12 1 IRC PCF-W0603R-01-4992-D or D1, D2 0 Not installed, photodiode (TO-46) Vishay D11P10049920.5PN R1, R2 2 100 1% resistors (0603) R3 0 Not installed, resistor (0603) 4.99k 0.5%, precision chip resistor (0603) R4 0 Not installed, potentiometer R13 1 IRC PCF-W0603R-02-4991-D or 30.1k 0.1%, precision chip Vishay D11P10049910.5PN resistor (0603) R5 1 Not installed, shorted by PC trace ICR PCF-W0603R-03-3012-B or R14 0 (0603) Vishay P0603K3012BB Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX4206 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION MAX4206ETE JU2, JU5, JU7, U1 1 4 3-pin headers (16-pin TQFN 4mm x 4mm) JU8 JU3 1 5-pin header Not installed, edge-mount SMA J1, J2 0 connectors JU4 1 4-pin header None 11 Shunts JU1, JU6, JU9, 5 2-pin headers JU10, JU11 None 1 MAX4206/7 PC board Component Suppliers SUPPLIER PHONE FAX WEBSITE IRC 361-992-7900 361-992-3377 www.irctt.com Murata 770-436-1300 770-436-3030 www.murata.com Taiyo Yuden 800-348-2496 847-925-0899 www.t-yuden.com TDK 847-803-6100 847-390-4405 www.component.tdk.com Vishay 402-564-3131 402-563-6296 www.vishay.com Note: Indicate that you are using the MAX4206/MAX4207 when contacting these suppliers. 6) Connect a 100A current source to the LOGIIN pad. Quick Start 7) Turn on the power supply and verify the output volt- The MAX4206 EV kit is a fully assembled and tested ages LOGV1 = 0.75V and LOGV2 = 3.00V. surface-mount board. Follow the steps below for board operation. Do not turn on the power supply until all Note: For dual-supply operation, JU1 should be open. connections are complete. Reset the V and V to within operation range. CC DD Recommended Equipment Detailed Description Current source capable of sourcing 10nA to 1mA Jumper Selection current Jumper JU3 controls the REFISET pin of the MAX4206/ Single +2.7V to +11V, 20mA DC power supply MAX4207 device. See Table 1 for JU3 function. Evaluating the MAX4206 with Single Supply Table 1. JU3 Function 1) Verify that shunts are connected across jumpers JU1 and JU11 (single-supply operation, sets JU3 SHUNT POSITION REFERENCE CURRENT CMVIN = CMVOUT). Pins 1 and 2 10nA 2) Verify that shunts are connected across jumpers Pins 1 and 3 100nA JU4 (pins 1 and 4), JU5 (pins 2 and 3), JU6, and Pins 1 and 4 1A JU7 (pins 1 and 2) (sets output scale factor K = 1V/decade). Pins 1 and 5 10A 3) Verify that shunts are connected across jumpers Note: Make sure a shunt is across pins 2 and 3 of JU8 when using the on-board reference current source. JU8 (pins 2 and 3) and JU3 (pins 1 and 3) (sets on- board reference current = 100nA). 4) Verify that there is no shunt across jumpers JU2, JU9, and JU10. 5) Connect a +5V power supply to the VCC pad. Connect the power-supply ground to the GND pad. 2 Evaluates: MAX4206/MAX4207