Evaluates: MAX40007 MAX40007 Evaluation Kit General Description Procedure The MAX40007 evaluation kit (EV kit) is a fully assembled The EV kit is fully assembled and tested. Follow the steps below to verify board operation. Caution: Do not turn on and tested circuit board that contains all the components power supplies until all connections are completed necessary to evaluate the MAX40007 IC, offered in a and turn on V , V supplies before turning on space-saving 1.1mm x 0.76mm, 6-bump wafer-level CC SS power supplies on the input pins. package (WLP). The device is a rail-to-rail micropower op amp drawing only 700nA of supply current. The EV 1) Make sure J1 jumper is uninstalled and J2 jumper is kit operates from a single 1.7V to 5.5V DC power supply. in 2-3 position for single-supply operation. J2 should be in 1-2 position for split-supply operation. Features 2) Single-supply operation: Connect the positive 1.7V to 5.5V Single-Supply Operation terminal of the +5V supply to the VDD test point and the GND terminal of supply to the GND test point. Make Comes in Unity-Gain Buffer Configuration sure J2 is in 2-3 position. The power supply should be off. Can Be Configured in Inverting, Non-Inverting, and 3) Connect the positive terminal of the precision voltage Differential Amplifier Configurations source to the IN+ test point. Evaluates the Device in a 6-Bump WLP 4) Connect the DMM to monitor the voltage on the OUT Proven PCB Layout test point. Fully Assembled and Tested 5) Turn on the 5V power supply and apply 2.5V from the precision voltage source. Observe the output at Quick Start the OUT test point on the DMM. OUT should read approximately 2.5V. Also, vary IN+ voltage between Required Equipment 0.05V to 3.9V to see if DMM on the OUT test point MAX40007 EV kit follows the IN+ voltage applied. 1.7V to 5.5V, 100mA DC power supply 6) Split-supply operation: Connect the positive Voltmeter terminal of the +2.5V supply to the VDD test point and the GND terminal of the supply to the GND test point. Connect -2.5V supply to VSS test point. Make sure J2 Ordering Information appears at end of data sheet. is in 1-2 position for this test. 7) Connect the positive terminal of the precision voltage source to the IN+ test point. 8) Connect the DMM to monitor the voltage on the OUT test point. 9) Turn on the +2.5V and -2.5V power supply and apply 1V from the precision voltage source. Observe the output at the OUT test point on the DMM. OUT should read approximately 1V. Also, vary IN+ voltage between -2.45V to 1.4V to see if DMM on the OUT test point follows the applied IN+ voltage. 19-8755 Rev 0 1/17Evaluates: MAX40007 MAX40007 Evaluation Kit Inverting Amplifier Detailed Description of Hardware To configure the device as an inverting amplifier, replace The MAX40007 EV kit contains the MAX40007 IC, which R4 and R3 with suitable gain resistors. An appropriate DC is a rail-to-rail output micropower op amp with an ultra-low voltage (V ) should be applied to the IN+ test point to 700nA supply current designed in a 6-bump WLP. The EV DC level-shift the output voltage of the op amp if the applied kit operates from a single 1.7V to 5.5V DC power supply. input voltage (V ) at the IN- test point pad is positive: IN- Default Application Circuit R4 R4 The EV kit comes preconfigured in a unity-gain buffer V = (V1)++ (V )+ (V ) OUT IN OS DC R3 R3 configuration. Op Amp Configurations Differential Amplifier The EV kit provides flexibility to easily reconfigure the op amp To configure the device as a differential amplifier, replace into any of the three common circuit topologies: inverting R2, R , R3, and R4 with appropriate resistors. When R CI CI amplifier, noninverting amplifier, differential amplifier. = R4 and R2 = R3, the CMRR of the differential amplifier These configurations are described in the next few sections. is determined by the matching of ratios R3/R4 and R2/R : CI Noninverting Amplifier R4 V GAIN(V V )++1 V OUT IN+IN OS To configure the device as a noninverting amplifier, R3 replace R4 and R3 with suitable resistors. Install J1 to configure the op amp into noninverting mode. The output where: R R4 voltage (V ) for the noninverting configuration is OUT CI GAIN given by the following equation: R2 R3 *Note: R means resistor on CI Pad. R4 CI V=1++VV ( ) OUT IN+ OS R3 Buffer Amplifier By default, the EV kit is configured as a standard unity- where: gain buffer. V = Input-referred offset voltage. OS V VV+ V = Input voltage applied at the IN+ PCB pad. OUT IN+ OS IN+ Table 1. Default Jumper Settings JUMPER SHUNT POSITION DESCRIPTION JU1 Not installed IN- to GND 2-3 V = GND SS JU2 1-2 User-defined V on VSS test point SS Component Suppliers SUPPLIER WEBSITE Murata Electronics North America, Inc. www.murata.com Note: Indicate that you are using the MAX40007 when contacting this component supplier. Ordering Information PART TYPE MAX40007EVKIT EV Kit RoHS-compliant Maxim Integrated 2 www.maximintegrated.com = = = =