Click here to ask about the production status of specific part numbers. Evaluates: MAX41400 MAX41400 Evaluation Kit Procedure General Description The EV kit is fully assembled and tested. Follow the steps The MAX41400 evaluation kit (EV kit) provides a proven below to verify board operation. design to evaluate the MAX41400 low-power precision instrumentation amplifier with programmable gain in a Caution: Do not turn on the power supply until all nine-bump wafer-level package (WLP). The MAX41400 connections are completed. features internal selectable gain from 10V/V to 200V/V. 1) Verify that all jumpers (JU1JU4) are in their default The MAX41400 EV kit can set different device gain with positions, as shown in Table 2. different jumper configurations. The EV kit operates from 2) Set the power supply to 0.9V. Connect the positive a single supply voltage between 1.7V and 3.6V, or from terminal of the power supply to V and the negative dual supplies providing 0.85V to 1.8V. CC terminal of the power supply to V . Connect the SS ground terminal of the power supply to GND. Features Single- or Dual-Supply Operation 3) Connect GND to REFIN. Configurable Gain 4) Connect the ground terminal of the power supply to Inverting Input (IN-). Configurable Reference Voltage 5) Connect the positive terminal of the voltage calibrator to Proven PCB layout Non-Inverting Input (IN+), and connect the ground Fully Assembled and Tested terminal of the voltage calibrator to the EV kit board ground. Set the voltage calibrator to 1mV. Quick Start 6) Turn on the power supply and voltage calibrator. Required Equipment 7) Verify that the DMM measures a 10mV DC voltage MAX41400 EV Kit at OUT. Voltage Calibrator 8) Change gain selection by connecting JU3 to 1-2, repeat step 5 and 6, and verify that the DMM mea- 0.9V, 100mA DC power supply(PS1) sures 40mV at OUT. Digital multimeter 9) Change gain selection by connecting JU4 to 1-2, repeat step 5 and 6, and verify that the DMM mea- Ordering Information appears at end of data sheet. sures 200mV at OUT. 319-100583 Rev 0 8/20Evaluates: MAX41400 MAX41400 Evaluation Kit Table 1. Gain Selection Detailed Description of Hardware The MAX41400 EV kit evaluates the MAX41400 instru- JU3 (G1) JU4 (G2) GAIN (V/V) mentation amplifier, which features programmable gain 2-3 2-3 with gain-selection pin, low power consumption and low 10 offset voltage. The MAX41400 output-voltage range is 1-2 2-3 40 rail-to-rail. The MAX41400 EV kit voltage gain can be 2-3 1-2 100 configured to 10V/V, 40V/V,100V/V, and 200V/V. The EV kit operates from a single supply voltage between 1.7V 1-2 1-2 200 and 3.6V, or from dual supplies providing 0.85V to 1.8V. Table 2. Jumper Descriptions (JU1JU4) REF Input The reference voltage at REF sets the output-voltage DC SHUNT JUMPER DESCRIPTION signal (OUT) when the differential-input signal (V - V IN+ IN-) POSITION equals zero. The user can connect an external reference Supply V and GND voltage directly to the REF connector, or use the resistor- SS 1-2* independently for dual-supply divider network (R3, R6) to provide a reference voltage operation JU1 scaled from V . Replace resistors R3 and R6 to modify the DD voltage applied to REF using following equation: Connect V to GND for single- SS 2-3 supply operation V = V x (R3/(R6 + R3)) REF DD where V is the input supply voltage to the EV kit. Connect SHDN to V to place DD DD 1-2* the device in normal operation Differential-Input Filter JU2 Connect SHDN to GND to place The MAX41400 EV kit features an optional balanced- 2-3 the device in shutdown mode differential resistor-capacitor filter across the MAX41400 IN+ and IN- input pins. Replace the resistors (R1, R2) Gain selection input G1 connect 1-2 to V and capacitor (C4) that form the filter with components of DD JU3 appropriate value. Gain selection input G1 connect 2-3* to V SS Gain Setting Gain selection input G2 connect Connect G1 and G2 to either V or V for different gain SS DD 1-2 to V selections. The MAX41400 EV kit can be configured for DD JU4 four gain selections, as shown in Table 1. Gain selection input G2 connect 2-3* to V SS *Default position. Ordering Information PART TYPE MAX41400EVKIT EV Kit Denotes RoHS compliant. Maxim Integrated 2 www.maximintegrated.com