Evaluates: MAX9618 19-5186 Rev 0 3/10 MAX9618 Evaluation Kit General Description Features The MAX9618 evaluation kit (EV kit) provides a prov- S Accommodates Multiple Op-Amp Configurations en design to evaluate the MAX9618 dual low-power, S Component Pads Allow for Sallen-Key Filter zero-drift operational amplifiers (op amps) in an 8-pin S Rail-to-Rail Inputs/Outputs SC70 package. The EV kit circuit is preconfigured as S Accomodates Easy-to-Use 0805 Components noninverting amplifiers, but can be adapted to other topologies by changing a few components. Low power, S Proven PCB Layout zero drift, input offset voltage, and rail-to-rail input/ S Fully Assembled and Tested output stages make this device ideal for a variety of low- frequency measurement applications. The component pads accommodate 0805 packages, making them easy to solder and replace. The MAX9618 EV kit comes with a MAX9618AXA+ installed. Ordering Information PART TYPE MAX9618EVKIT+ EV Kit +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION R3, R4, R7, R13, 0.1FF Q10%, 25V X7R ceramic 0 Not installed, resistors (0805) R14, R17 C1, C3 2 capacitors (0805) Murata GRM21BR71E104K R5, R15 2 10kI Q1% resistors (0805) R6, R8, R16, 4.7FF Q10%, 25V X5R ceramic 4 0I Q5% resistors (0805) R18 C2, C4 2 capacitors (0805) Murata GRM21BR61E475K Not installed, miniature test TP1, TP2 0 points C5C10, Not installed, ceramic 0 C15C20 capacitors (0805) Dual low-power, rail-to-rail I/O U1 1 op amp (8 SC70) JU1, JU2, JU4, Maxim MAX9618AXA+ JU11, JU12, 6 2-pin headers, 0.1in centers JU14 10 Shunts JU3, JU13 2 3-pin headers, 0.1in centers PCB: MAX9618 EVALUATION 1 KIT+ R1, R2, R11, 4 1kI Q1% resistors (0805) R12 Component Supplier SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Note: Indicate that you are using the MAX9618 when contacting this component supplier. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX9618 Evaluation Kit 4) Connect INAM to GND. Quick Start 5) Connect the positive terminal of the second preci- Required Equipment sion voltage source to the INBP pad. Connect the MAX9618 EV kit negative terminal of the precision voltage source to +5V, 10mA DC power supply (PS1) GND. Two precision voltage sources 6) Connect INBM to GND. Two digital multimeters (DMMs) 5) Connect the DMMs to monitor the voltages on OUTA and OUTB. With the 10k feedback resistors and Procedure 1k series resistors, the gain of each noninverting The MAX9618 EV kit is fully assembled and tested. amplifier is +11. Follow the steps below to verify board operation: 8) Turn on the +5V power supply. 1) Verify that the jumpers are in their default position, 9) Apply 100mV from the precision voltage sources. as shown in Table 1. Observe the output at OUTA and OUTB on the 2) Connect the positive terminal of the +5V supply to DMMs. Both should read approximately +1.1V. VDD and the negative terminal to GND and VSS. 10) Apply 400mV from the precision voltage sources. 3) Connect the positive terminal of the precision volt- Both OUTA and OUTB should read approximately age source to INAP. Connect the negative terminal +4.4V. of the precision voltage source to GND. Table 1. Jumper Descriptions JUMPER SHUNT POSITION DESCRIPTION 1-2* Connects INAM to R1. Also shorts capacitor C5. JU1 Connects INAM to R1 through capacitor C5. When AC-coupling is desired, remove the Open shunt and install capacitor C5. 1-2* Connects INAP to JU3 position 1. Also shorts capacitor C6. JU2 Connects INAP to JU3 position 1 through capacitor C6. When AC-coupling is desired, Open remove the shunt and install capacitor C6. 1-2* Connects INAP to JU2 and C6 through R2 and R8 JU3 2-3 Connects INAP to GND through R2 and R8 1-2* Connects OUTA to OUTA JU4 Connects OUTA to OUTA through capacitor C10. When AC-coupling is desired, remove Open the shunt and install capacitor C10. 1-2* Connects INBM to R11. Also shorts capacitor C15. JU11 Connects INBM to R11 through capacitor C15. When AC-coupling is desired, remove the 2-3 shunt and install capacitor C15. 1-2* Connects INBP to JU13 position 1. Also shorts capacitor C16. JU12 Connects INBP to JU13 position 1 through capacitor C16. When AC-coupling is desired, Open remove the shunt and install capacitor C16. 1-2* Connects INBP to JU12 and C16 through R12 and R18 JU13 2-3 Connects INBP to GND through R12 and R18 1-2* Connects OUTB (U1, pin 1) to OUTB JU14 Connects OUTB (U1, pin 1) to OUTB through capacitor C20. When AC-coupling is Open desired, remove the shunt and install capacitor C20. *Default position. 2 Evaluates: MAX9618