MAX9017A, MAX9017B

SOT23, Dual, Precision, 1.8V, Nanopower Comparators With/Without Reference

Dual, Precision, 1.8V, Nanopower Comparators With/Without Reference in SOT23

Please check latest availability status for a specific part variant.


The single MAX9015/MAX9016 and dual MAX9017–MAX9020 nanopower comparators in space-saving SOT23 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to 1.8V. The A-grade packages feature an on-board 1.236V ±1% reference, while the B-grade packages feature a 1.24V ±1.75% reference. An ultra-low supply current of 0.85µA (MAX9019/MAX9020), 1µA (MAX9015/MAX9016), or 1.2µA (MAX9017/MAX9018) makes the MAX9015–MAX9020 family of comparators ideal for all 2-cell battery monitoring/management applications.

The unique design of the MAX9015–MAX9020 output stage limits supply-current surges while switching, which virtually eliminates the supply glitches typical of many other comparators. This design also minimizes overall power consumption under dynamic conditions. The MAX9015/MAX9017/MAX9019 have a push-pull output stage that sinks and sources current. Large internal output drivers allow rail-to-rail output swing with loads up to 6mA. The MAX9016/MAX9018/MAX9020 have an open-drain output stage that makes them suitable for mixed-voltage system design. All devices are available in the ultra-small 8-pin SOT23 package.

Refer to the MAX9117–MAX9120 data sheet for similar single comparators with or without reference in a tiny SC70 package.
MAX9015, MAX9015A, MAX9016, MAX9016A, MAX9017, MAX9017A, MAX9017B, MAX9018, MAX9018A, MAX9018B, MAX9019, MAX9020: Functional Diagram MAX9015, MAX9015A, MAX9016, MAX9016A, MAX9017, MAX9017A, MAX9017B, MAX9018, MAX9018A, MAX9018B, MAX9019, MAX9020: Functional Diagram Enlarge+

Key Features

  • Ultra-Low Total Supply Current
    • 0.85µA (MAX9019/MAX9020)
    • 1.0µA (MAX9015A/MAX9016A)
    • 1.2µA (MAX9017/MAX9018)
  • Guaranteed Operation Down to 1.8V
  • Precision VOS < 5mV (max)
  • Internal 1.236V ±1% Reference (A Grade)
  • Input Voltage Range Extends 200mV Beyond-the-Rails
  • CMOS Push-Pull Output with ±6mA Drive Capability (MAX9015/MAX9017/MAX9019)
  • Open-Drain Output Versions Available (MAX9016/MAX9018/MAX9020)
  • Crowbar-Current-Free Switching
  • Internal 4mV Hysteresis for Clean Switching
  • No Phase Reversal for Overdriven Inputs
  • Dual Versions in Space-Saving 8-Pin SOT23 Package
  • AEC-Q100 Grade 3 Qualified, Refer to Ordering Information for the List of /V Parts


  • 2-Cell Battery Monitoring/Management
  • Automotive
  • Discriminators
  • Medical Instruments
  • Mobile Communications
  • Notebooks and PDAs
  • Sensing at Ground or Supply Line
  • Telemetry and Remote Systems
  • Threshold Detectors
  • Ultra-Low Power Systems
  • Window Detectors

See parametric specs for Comparators (97)

Part NumberComparatorstPD
Input RangeVSUPPLY (Total)
ICC per Comp.
Logic OutOper. Temp.
typminmaxmaxtypmaxSee Notes
MAX9019 230000
Rail to Rail
to Neg. Rail to +85
$0.73 @1k
MAX9020 Open Drain
$0.68 @1k

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.

See parametric specs for Comparators + Reference (48)

Part NumberComparatorsThresh.
Internal Reference Accuracy
Prog. Hyst.VOS
Logic OutOper. Temp.
typminmaxmaxtypmaxSee Notes
MAX9015A 11.241301.85.51.5No0.155Push-Pull-40 to +85
$0.83 @1k
MAX9016A 111.5Open Drain
$0.83 @1k
MAX9017A 211.9Push-Pull
See Data Sheet
MAX9017B 21.751.9Push-Pull
$0.89 @1k
MAX9018A 211.9Open Drain
$1.10 @1k
MAX9018B 21.751.9Open Drain
$0.89 @1k

MAX9017AEVKIT: Evaluation Kit for the MAX9017A/MAX9017B/MAX9018/MAX9019 and MAX9020
Product Reliability Reports: MAX9017A.pdf 
Request Reliability Report for: MAX9017B 
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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