MAX40002ANS12+T

Overview

The MAX40002ANS12+T is a single-channel analog comparator from the nanoPower family, 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 an internal reference voltage preset at 1.222V, an open-drain output configuration, and a noninverting input polarity. It is housed in a 4-bump wafer-level package (WLP) with dimensions of 0.73mm x 0.73mm. The component supports an input voltage range of 0.1V to VCC + 0.1V and maintains high impedance inputs even when powered down.

Feature Summary

• Ultra-low power consumption preserves battery life in portable applications
• Tiny footprint minimizes board space requirements
• High RF immunity through internal filtering
• Flexible input voltage range independent of supply voltage

Applications

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

Procurement Notes

Verify the specific ordering suffix '12' confirms the factory-trimmed 1.222V internal reference voltage. Confirm the 'ANS' designation corresponds to the 4-bump WLP package variant rather than the SOT23 option. Ensure compatibility with the required open-drain logic interface and check for any RoHS compliance documentation associated with the '+T' tape-and-reel packaging format.

Selection Notes

Select this part when a fixed low-voltage threshold near 1.2V is required without external components. The open-drain output necessitates an external pull-up resistor for proper operation. Consider alternative variants if push-pull outputs or different reference voltages are needed. Verify that the 500nA quiescent current meets the strictest power budget constraints of the target application.

Part Context

This component belongs to the MAX40002–MAX40005 and MAX40012–MAX40015 series of nanoPower comparators. These devices are designed for compact, low-current, and low-voltage applications where board space is limited. The series offers various combinations of input polarities, output types, and internal reference voltages to suit diverse system requirements.

Replacement Considerations

Direct substitutes include other MAX40002 variants with different internal references or packages, such as MAX40002ANS+T or MAX40002AUK12+T. Cross-family replacements require matching the open-drain output and noninverting input characteristics while verifying supply voltage and current specifications.