Evaluate: MAX40000 MAX40000/MAX40001 MAX40001 Evaluation Kits Procedure General Description The MAX40000/MAX40001 EV kits are fully assembled The MAX40000 and MAX40001 evaluation kits (EV kits) and tested. Follow steps below to verify board operation. are fully assembled and tested PC boards that evaluate Caution: Do not turn on the power supply until all the MAX40000 and MAX40001 single comparators with connections are completed. By default, the MAX40000 internal voltage references, respectively. By default, the EV kit comes with the MAX40000ANT12+. MAX40001 EV kit has an open-drain output, while the MAX40000 EV kit has a push-pull output. These EV 1) Connect the positive terminal of a DC power supply kits come with a MAX40000ANT12+/MAX40001ANT12+ to the VDD test point and the ground terminal to the installed that operate off a V supply between 1.7V and CC GND test point. 5.5V, an internal reference voltage of 1.252V, and have a 2) Connect the positive terminal of a DC power supply to wide -0.2V to +5.7V input voltage (V ) range. These EV kits IN the VPULL test point and the ground terminal to the demonstrate the MAX40000ANT12+/MAX40001ANT12+ GND test point (not applicable for the MAX40000 in an ultra-small, 1.1mm x 0.76mm, 6-bump wafer-level EV kit). This is not necessary while evaluating the package (WLP) with 0.35mm bump spacing. MAX40000 on the MAX40001 EV kit. R3 needs to be removed while using MAX40001 EV kit to evaluate These EV kits can be used to evaluate the entire family the MAX40000 push-pull version. of MAX40000/MAX40001 with 6-bump WLP options. 3) Connect the positive terminal of a DC power supply Remove pullup resistor R3 on the MAX40001 EV kit to the INP test point and the ground terminal to the when evaluating the MAX40000 in place of the default GND test point. MAX40001 IC included in the MAX40001 EV kit. 4) Use a wire to short INM test point and V test point REF to connect voltage reference output (1.252V, default) Features to inverting input. -0.2V to V + 0.2 Input Voltage Range DD 5) Turn on the V power supply and set it to any voltage CC 1.7V to 5.5V V Range with Internal Reference DD between 1.7V to 5.5V. 1.252V, 1.66V, 1.94V, and 2.22V Internal Voltage 6) Monitor the output voltage at the VREF test point Reference Options Available (V min Depends on DD using DMM. This should be 1.252V (default) when either the Voltage Reference Option) the MAX40000ANT12+/MAX40001ANT12+ is used. Note: Refer to the Electrical Characteristics table of the 7) Turn on the V power supply and set it to any voltage PULL MAX40000 IC data sheet for more information on minimum V . DD between 1.7V to 5.5V (MAX40001 only). Do not need V supply when MAX40000 (push-pull output) is Configured to Add External Hysteresis PULL used on the MAX40001 EV kit. Evaluates 6-Bump WLP 8) Turn on the INP power supply and set it to the desired Proven PCB Layout level. Fully Assembled and Tested 9) Monitor the output using a DMM at the VOUT test point and study its response to varying voltage at INP. Ideally, Quick Start voltage at the VOUT test point of the MAX40001 EV kit Required Equipment should be at logic-high (V ) when voltage applied on PULL Before beginning, the following equipment is needed: INP is greater than 1.252V and should be at logic-low (0V) when voltage applied on INP is less than 1.252V. Three +5V DC power supplies (V , INP, and V DD PULL 10) While, on the MAX40000 EV kit, the voltage on the on MAX40001EVKIT) VOUT test point will be at V when the voltage on INP CC Two digital multimeters (DMMs) is greater than 1.252V, it should be at GND when the voltage applied on INP is less than 1.252. Ordering Information appears at end of data sheet. 19-8620 Rev 2 6/17Evaluate: MAX40000 MAX40000/MAX40001 Evaluation Kits MAX40001 The VPULL test point on the MAX40001 EV kit is utilized Detailed Description of Hardware to apply a pullup supply voltage between 1.7V to 5.5V The MAX40000/MAX40001 EV kits are fully assembled for the open-drain output devices for proper operation. and tested PC boards that evaluate the 6-bump WLP Remove R3 and eliminate V if evaluating the PULL MAX40000ANT12+/MAX40001ANT12+ push-pull/open- comparators with the push-pull output (MAX40000) on the drain output comparators, respectively. These EV kits require MAX40001 EV kit. a 1.7V to 5.5V supply voltage for normal operation and can The MAX40000 EV kit, by default, comes with the be used to evaluate all other MAX40000/MAX40001 parts that come with a WLP. MAX40000ANT12+. If the user would like to evaluate the MAX40001 on the MAX40000 EV kit, the user should These EV kits allow users to add external hysteresis in provide a pullup resistor to supply voltage on the VOUT addition to the 4mV internal hysteresis through the addition test point. of appropriate resistors on the R2 and R1 pads provided on The MAX40001 EV kit, by default, comes with the the EV board. The amount of hysteresis added is given by the equation below, based on R1, R2 values: MAX40001ANT12+. If the user would like to evaluate the MAX40000 on the MAX40001 EV kit, the user should R1 remove jumper J1 to the pullup resistor on the output pin. Hysteresis VCC R2 These EV kits also allow users to apply an internal voltage reference to either the IP or IN input pins of the comparator by installing resistor components on R4, R5, and R6 pads. R4 and R5 resistor combination can be used if a voltage- divided version voltage of internal voltage reference is needed in the application. Table 1. Default Jumper Settings JUMPER SHUNT POSITION J1 (MAX40001EVKIT Only) Installed J2 Not Installed Maxim Integrated 2 www.maximintegrated.com =