MAX9028

PRODUCTION

UCSP, 1.8V, nanoPower, Beyond-the-Rails Comparators With/Without Reference

Data Sheet (Rev. 3) Product Selection Table
Viewing:

Overview

  • Space-Saving UCSP Package (1mm x 1.52mm)
  • Ultra-Low Supply Current
    • 0.6µA (MAX9027/MAX9028)
    • 1µA with Reference (MAX9025/MAX9026)
  • Guaranteed to Operate Down to +1.8V
  • Internal 1.236V ±1% Reference (MAX9025/MAX9026)
  • Input Voltage Range Extends 200mV Beyond-the-Rails
  • CMOS Push-Pull Output with ±5mA Drive Capability (MAX9025/MAX9027)
  • Open-Drain Output Versions Available (MAX9026/MAX9028)
  • Crowbar-Current-Free Switching
  • Internal Hysteresis for Clean Switching
  • No Phase Reversal for Overdriven Inputs

The MAX9025–MAX9028 nanopower comparators in space-saving chip-scale (UCSP™) packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1.8V. The MAX9025/MAX9026 feature an on-board 1.236V ±1% reference and draw an ultra-low supply current of only 1µA, while the MAX9027/MAX9028 (without reference) require just 0.6µA of supply current. These features make the MAX9025–MAX9028 family of comparators ideal for all 2-cell battery-monitoring/management applications.

The unique design of the output stage limits supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators. This design also minimizes overall power consumption under dynamic conditions. The MAX9025/MAX9027 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 5mA. The MAX9026/MAX9028 have an open-drain output stage that makes them suitable for mixed-voltage system design. All devices are available in the miniature 6-bump UCSP packages.

Refer to the MAX9117 data sheet for similar comparators in 5-pin SC70 packages and the MAX9017 data sheet for similar dual comparators in 8-pin SOT23 packages.

Applications

  • 2-Cell Battery Monitoring/Management
  • Medical Instruments
  • Mobile Communications
  • Notebooks and PDAs
  • Sensing at Ground or Supply Line
  • Telemetry and Remote Systems
  • Ultra-Low-Power Systems
MAX9028
UCSP, 1.8V, nanoPower, Beyond-the-Rails Comparators With/Without Reference
MAX9025, MAX9026, MAX9027, MAX9028: Functional Diagram
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

Design Note 2

Technical Articles 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Latest Discussions

No discussions on MAX9028 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed