MAX40014AUK09+T

Overview

The MAX40014AUK09+T is a single nanoPower comparator in a 5-pin SOT23 package. It operates on a supply voltage range of 1.7V to 5.5V with a typical supply current of 500nA. The device features a noninverting input and a push-pull output. It includes an internal reference voltage preset at 0.9V, providing a switching threshold of 882mV to 918mV at +25°C. Input voltage ranges from 0.1V to VCC, maintaining high impedance when powered down. Propagation delay is typically 9µs with 100mV overdrive. Operating temperature spans -40°C to +125°C.

Feature Summary

• Ultra-low power consumption preserves battery life in portable applications
• Push-pull output stage eliminates the need for external pullup resistors
• High-impedance inputs remain functional even when the device is unpowered
• Internal filtering provides immunity against RF noise interference

Applications

• Mobile devices
• Portable medical devices
• Notebook computers
• Electronic toys

Procurement Notes

Verify the specific suffix 'AUK09' confirms the SOT23 package and 0.9V internal reference. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering code matches the required noninverting input configuration. Cross-reference the datasheet revision history for any updates to electrical characteristics or pinout definitions before finalizing procurement.

Selection Notes

Select this component when board space is limited and low quiescent current is critical. The push-pull output simplifies circuit design by removing external pullup requirements. Verify that the 0.9V internal reference aligns with the application's signal threshold needs. Consider the SOT23 package if WLP footprint constraints are not applicable. Ensure the operating voltage range supports the system's power rails.

Part Context

This part belongs to the MAX40002–MAX40015 family of nanoPower comparators designed for ultra-tiny form factors. The series offers both open-drain and push-pull outputs with various internal reference options. The MAX40014 variant specifically provides a noninverting input with a push-pull output structure. These devices target applications requiring minimal board area and extended battery operation.

Replacement Considerations

The MAX40014ANS09+T serves as a direct replacement using the 4-bump WLP package instead of SOT23. Other family members like MAX40004 or MAX40015 share similar electrical characteristics but differ in input polarity or output type. Verify package compatibility and reference voltage settings when substituting.

FAQ

How does the MAX40014 handle input voltages exceeding the supply voltage?

The device maintains a high input impedance and allows the input voltage to exceed VCC by several volts, limited only by absolute maximum ratings.

What is the function of the AUK suffix in the part number?

The AUK suffix indicates the device is packaged in a 5-pin SOT23 format.

Does the MAX40014 require an external pullup resistor?

No, it features a push-pull output stage capable of sourcing and sinking current without external components.