MAX40005AUK+T

Overview

The MAX40005AUK+T is a single-channel, inverting-input analog comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.7V to 5.5V and consumes a typical supply current of 500nA. The device features a push-pull output stage and includes an internal reference voltage preset at 0.5V. Key electrical characteristics include a propagation delay of 25µs (typical) with 100mV overdrive, an input offset voltage of up to 32mV across the temperature range, and an input bias current of 90nA maximum. It is housed in a 5-pin SOT-23 package and is specified for operation from -40°C to +125°C.

Feature Summary

• Ultra-low power consumption of 500nA enables extended battery life in portable applications.
• Integrated factory-trimmed 0.5V internal reference eliminates the need for external components.
• Push-pull output architecture provides direct drive capability without requiring external pull-up resistors.
• Input voltage range extends from 0.1V to 5.5V, independent of the supply voltage.

Applications

• Mobile devices
• Portable medical devices
• Notebook computers

Procurement Notes

Verify the specific suffix 'AUK' corresponds to the SOT-23 package and lead-free status when sourcing. Confirm that the '+T' designation indicates tape-and-reel packaging if applicable to your assembly process. Ensure the component meets RoHS compliance requirements for your region. Cross-reference the manufacturer's latest ordering information to confirm availability and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when board space is constrained and low quiescent current is critical. The inverting input polarity requires the signal to be compared against the reference such that the output goes low when the input exceeds the threshold. The push-pull output simplifies interface design with digital logic. Verify that the 25µs propagation delay meets the timing requirements of the target application.

Part Context

This part belongs to the MAX40002–MAX40005 family of nanoPower comparators designed for ultra-tiny packages. The AUK suffix specifically denotes the 5-pin SOT-23 package variant, distinguishing it from the WLP package options. The family shares common architectural features including high RF immunity and flexible power-saving schemes due to high impedance inputs even when powered down.

Replacement Considerations

Direct functional substitutes within the same family include MAX40005ANS+T (WLP package) or other variants like MAX40004AUK+T if non-inverting input polarity is acceptable. Ensure replacement parts maintain the required push-pull output configuration and compatible supply voltage ranges.