MAX40008/MAX40009 Evaluation Kit Evaluates: MAX40008/MAX40009 General Description Quick Start The MAX40008/MAX40009 evaluation kit (EV kit) is a Required Equipment fully assembled and tested PC board that evaluates Three +5V DC power supplies the MAX40008/MAX40009 single comparator with shutdown (V , V , and V ) DD IN+ PULL input. The MAX40009EVKIT comes with a push-pull out- Two digital multimeters (DMMs) put (MAX40009ANT+), while the MAX40008EVKIT EV kit comes with an open-drain output (MAX40008ANT+) Procedure installed that operates off a V supply between 1.7V DD The MAX40008/MAX40009 EV kit is fully assembled and 5.5V. The MAX40008/MAX40009 has a wide input and tested. Follow steps below to verify board operation. common mode voltage range from -0.2V to V + 0.2V. DD Caution: Do not turn on the power supply until all This EV kit demonstrates the MAX40008/MAX40009 in an connections are completed. ultra-small, 0.73mm x 1.1mm, 6-bump wafer-level pack- age (WLP) with 0.35mm bump spacing. 1) Connect the positive terminal of a DC power supply to the VDD test point and the ground terminal to the The EV kit can be used to evaluate both the GND test point. MAX40008 and MAX40009 with a 6-bump WLP. To evaluate the MAX40008 (open-drain output version on 2) Connect the positive terminal of a DC power supply to MAX40009EVKIT ), replace U1 (MAX40009) with the the VPULL test point and the ground terminal to the MAX40008 with jumper J1 installed. GND test point when evaluating the MAX40008. This is not necessary when evaluating the MAX40009. When using the MAX40008EVKIT to evaluate the MAX40009 (push-pull version), replace U1 (MAX40008) 3) Connect the positive terminal of a DC power supply with MAX40009 with jumper J1 removed. to the INP test point and the ground terminal to the GND test point. Features 4) Turn on the V power supply and set it to any DD 300ns Propagation Delay voltage between 1.7V and 5.5V. Wide Input Common Mode Voltage Range, 5) Turn on the V power supply and set it to any PULL -0.2V to V + 0.2V DD voltage between 1.7V to 5.5V (MAX40008 only). Hysteresis Adding Configurable Do not need V supply when MAX40009 PULL Evaluates 6-Bump WLP Package (push-pull output) is used. Fully Assembled and Tested 6) Turn on the IN+ power supply and set it to the desired level. 7) Monitor the output using a DMM at the V test Ordering Information appears at end of data sheet. OUT point and observe its response to varying voltage at IN+. V should be at logic-high (V ) when voltage OUT PULL applied on IN+ is greater than V and should be at IN- logic-low (0V) when the voltage applied on IN+ is less than V . IN- 319-100005 Rev 1 6/17 MAX40008/MAX40009 Evaluation Kit Evaluates: MAX40008/MAX40009 the term Detailed Description of Hardware The MAX40008/MAX40009 EV kit is a fully assembled R1 V ~ 0, so and tested PC board that evaluates the 6-bump WLP OL R1 + R2 MAX40009ANT+ open-drain output comparator, while the MAX40008EVKIT comes with an open-drain output R1 + R3 (MAX40008ANT+). The EV kit requires a 1.7V to 5.5V VV= HYS PULL R1++R2 R3 supply voltage for normal operation. The EV kit can be used to evaluate both the MAX40008 and MAX40009 and R5 and R6 set the threshold voltage at IN- input as offered in a WLP package. follows: Positive Hysteresis R5 VV= The EV kit allows user to add external hysteresis in addi- IN- DD + R5 + R6 tion to the 4mV internal hysteresis by usage of adding appropriate resistors on R2 and R1 pads. When R1 and The source providing the signal input at IN+ input should R2 values are chosen in such a way that R1, R2 >> R3 be a low impedance source. High-impedance source (39k) approximately greater 50x than R3, then the equa- affects the trip points as the input resistance of the source tions become: adds on to R1. For the MAX40008 (open-drain) output: Logic Level Translation R2+ R3 R1+ R3 Use the MAX40008 output for logic-level translation VV + V THP IN PULL + R1++R2 R3 R1++R2 R3 applications. Install jumper J1 and apply the desired supply voltage level at V . Resistors R5 and R6 set PULL and the threshold voltage at IN-. Apply the signal to be level translated at IN+. Note that the devices output has an R2 R1 VV + V absolute maximum of (-0.3V) to +6V. See Table 1 for THN IN OL + R1++R2 R1 R2 jumper configurations. The pullup supply voltage (V ) can be up to 6V. when R1 and R2 >> RP PULL For evaluating the MAX40008 on the MAX40009EVKIT , R2 R1 VV + V replace U1 (MAX40009ANT+) with MAX40008ANT+ and THP IN P + R1++R2 R1 R2 install jumper J1 to connect to V . When using the PULL MAX40008EVKIT , to evaluate MAX40009 (push-pull VV= =V HYS THP THN version), replace U1 (MAX40008) with MAX40009 with R1 + R3 R1 jumper J1 removed. VV+ PULL OL R1++R2 R3 R1+ R2 Table 1. Jumper Settings JUMPER SHUNT POSITION FUNCTION J1 Installed Connects Open-Drain output (MAX40008) to V PULL Not Installed* Normal push-pull operation (MAX40009) 1-2* The device is in Active mode J2 2-3 The device is shut down *Default Jumper settings Ordering Information PART TYPE MAX40008EVKIT EV Kit MAX40009EVKIT EV Kit RoHS-compliant Maxim Integrated 2 www.maximintegrated.com = = =