MAX40000AUT12+T

Overview

The MAX40000ANT12+T is a single-channel precision analog comparator manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in a 6-bump WLP package. It operates within a supply voltage range of 1.7V to 5.5V and consumes a typical supply current of 0.9µA. The device features a push-pull output stage and includes an internal voltage reference set to 1.252V with ±1% initial accuracy. Electrical specifications include a maximum input offset voltage of 8mV, propagation delay under 10µs, and operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates a factory-trimmed voltage reference with high initial accuracy to eliminate external components.
• Features ultra-low power consumption suitable for battery-operated portable electronics.
• Includes built-in RF filtering and internal hysteresis to ensure stable switching in noisy environments.
• Provides rail-to-rail output swing with minimal supply current surges during transitions.

Applications

• Cell phones
• Portable instruments
• Notebook computers
• Level detectors

Procurement Notes

Verify the specific suffix 'ANT12' confirms the 6-bump WLP package and the 1.252V internal reference value. Ensure the '+T' designation matches the required tape-and-reel packaging format. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when board space is constrained due to its tiny footprint. Choose this part over open-drain variants if a push-pull output is required for direct logic interfacing. Verify that the 1.252V internal reference meets the threshold requirements; otherwise, consider versions without integrated references or with different voltage options.

Part Context

This device belongs to the MAX40000/MAX40001 family of nanoPower comparators designed for tight power and space constraints. It serves as a low-power alternative to standard comparators in portable consumer electronics. The family offers both push-pull and open-drain output configurations alongside various internal reference voltages.

Replacement Considerations

The MAX40000AUT12+T is a pin-compatible replacement offering the same electrical characteristics but packaged in a 6-pin SOT-23 form factor instead of the WLP.

FAQ

What is the function of the REF pin on the MAX40000ANT12+T?

The REF pin outputs the internal 1.252V voltage reference. It can be bypassed with a capacitor to ground and provides up to 100nA of drive current for external circuitry.

How does the MAX40000 handle input signals near the supply rails?

The input common-mode voltage range extends from -0.2V to VDD + 0.2V, allowing the comparator to process signals slightly beyond the supply rails.