MAX40008AUT+T

Overview

The MAX40008AUT+T is a single-channel analog comparator from Analog Devices, housed in a 6-pin SOT-23 package. It operates on a supply voltage range of 1.7V to 5.5V with a typical quiescent current of 12μA and a maximum of 17μA across the -40°C to +125°C temperature range. The device features rail-to-rail inputs, an open-drain output capable of pulling up to 6V above ground, and internal hysteresis. Key electrical parameters include a typical propagation delay of 650ns (with pull-up), 500μV input offset voltage, and 70dB common-mode rejection ratio.

Feature Summary

• Features a low-power shutdown mode that reduces quiescent current to 150nA when inactive.
• Includes integrated internal hysteresis to ensure clean output switching for slow-moving signals.
• Open-drain output stage allows level translation by pulling beyond VDD up to 6V.
• Unique output design limits supply-current surges during switching to prevent glitches.

Applications

• Mobile Communications
• Portable/Battery-Powered Systems
• Window Comparators
• Level Translators
• Threshold Detectors/Discriminators

Procurement Notes

Verify the specific suffix 'AUT' confirms the SOT-23-6 package variant rather than the WLP version. Confirm RoHS compliance status via the '+' designation in the part number. Ensure the application circuit accounts for the open-drain output requirement of an external pull-up resistor. Validate that the operating voltage remains within the 1.7V to 5.5V range for proper functionality.

Selection Notes

Select this component when board space constraints favor the SOT-23 package over the WLP option while maintaining low power consumption. Choose this model specifically for applications requiring level shifting where the output must exceed the supply voltage. Consider the 650ns propagation delay suitable for general-purpose timing rather than high-speed data recovery. Verify that the open-drain configuration aligns with the downstream logic interface requirements.

Part Context

This device belongs to the MAX40008/MAX40009 family of micro-power comparators designed for low-voltage systems. While the MAX40009 offers a push-pull output, the MAX40008 variant provides an open-drain output for flexible interfacing. Both share identical input characteristics and power profiles but differ in output topology and package availability options.

Replacement Considerations

The MAX40009AUT+T serves as a direct functional substitute if a push-pull output is preferred instead of open-drain. Other members of the MAX4000x series may offer different packages or speed characteristics but require verification of pin compatibility and electrical specifications.