1.7V, nanoPower Comparators with Built-in Reference

nanoPower Comparator in an Ultra-Tiny 0.76mm x 1.11mm Package

Please check latest availability status for a specific part variant.


The MAX40000/MAX40001 are tiny, single comparators with built-in voltage references that are ideal for a wide variety of portable electronics applications, such as cell phones, portable instruments, and notebooks that have extremely tight board space and power constraints. The MAX40000/MAX40001 are available in a 6-bump wafer-level package (WLP) with 1.11mm x 0.76mm footprint and a 6-pin SOT23 package. The MAX40000 has a push-pull output and the MAX40001 has an open-drain output.

The devices offer a supply voltage range from 1.7V to 5.5V and consume only 0.9µA of supply current. They also feature internal filtering to provide high RF immunity, important in many portable applications.

The devices have a high-precision integrated reference that is factory trimmed to an initial accuracy of 1% and better than 2.5% over the entire temperature range. Internal reference voltage options include 1.252V, 1.66V, 1.94V, and 2.22V. See Ordering Information for help with ordering a MAX40000/MAX40001 with a particular voltage reference value and package type. The reference output is stable for capacitive loads up to 100pF.

These devices are fully specified over -40°C to +125°C automotive temperature range.

Design Solution: Guard Your Portable Device While It Sleeps ›

MAX40000, MAX40001: Functional Diagram MAX40000, MAX40001: Functional Diagram Enlarge+

Key Features

  • Micropower Operating Current (0.9µA typ, 1.7µA max) Preserves Battery Power
  • Tiny 1.11mm x 0.76mm 6-Bump WLP and SOT23 Packages Save Board Space
  • Internal Precision Reference Saves Space and Cost of an External Reference
    • < 1% at Room Temperature, < 2.5% Over Temp Reference
    • Multiple Reference Voltages (1.252V, 1.66V, 1.94V, and 2.22V)
  • Input Voltage Range = -0.2V to 5.7V
  • Supply Voltage Range (1.7V to 5.5V) Allows Operation from 1.8V, 2.5V, 3V, and 5V Supplies
  • < 10µs Propagation Delay
  • Push-Pull (MAX40000) or Open-Drain (MAX40001) Outputs


  • Cell Phones
  • Electronic Toys
  • Level Detectors
  • Notebook Computers
  • Portable Medical Instruments/Wearables
  • Tablets and Consumer Accessories

See parametric specs for Comparators (97)

Part NumberComparatorstPD
Input RangeVSUPPLY (Total)
ICC per Comp.
Logic OutOper. Temp.
typminmaxmaxtypmaxSee Notes
MAX40000 13200
Rail to Rail
above Pos. Rail to +125
$0.43 @1k
MAX40001 Open Drain

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX40000EVKIT: Evaluation Kit for the MAX40000 / MAX40001
MAX40001EVKIT: Evaluation Kit for the MAX40000 / MAX40001

Tools & Models

  • MAX40001 Orcad Library
  • Request Reliability Report for: MAX40001 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >


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