1.3mm x 1.3mm, Low-Power Dual Comparator with Reference

 

Part Number	Replacement	Explanation

Description

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The MAX44268 is an ultra-small and low-power dual comparator ideal for battery-powered applications such as cell phones, notebooks, and portable medical devices that have extremely aggressive board space and power constraints. The comparator is available in a miniature 1.3mm x 1.3mm, 9-bump WLP package, making it the industry’s smallest dual comparator.

The IC can be powered from supply rails as low as 1.8V and up to 5.5V. It also features a 1.236V ±1% reference and a 0.7µA typical supply current per comparator. It has a rail-to-rail input structure and a unique output stage that limits supply current surges while switching. This design also minimizes overall power consumption under dynamic conditions. The IC has open-drain outputs, making it suitable for mixed voltage systems. The IC also features internal filtering to provide high RF immunity. It operates over a -40°C to +85°C temperature.

MAX44268: Typical Application Circuit Enlarge+

Key Features

• Ultra-Low Power Consumption
  • 0.7µA per Comparator
• Ultra-Small 1.3mm × 1.3mm WLP Package
• Internal 1.236V ±1% Reference
• Guaranteed Operation Down to V_CC = 1.8V
• Input Common-Mode Voltage Range Extends 200mV Beyond-the-Rails
• 6V Tolerant Inputs Independent of Supply
• Open-Drain Outputs
• Internal Filters Enhance RF Immunity
• Crowbar-Current-Free Switching
• Internal Hysteresis for Clean Switching
• No Output Phase Reversal for Overdriven Inputs

Applications/Uses

• Battery-Operated Sensors
• Notebooks
• Portable Medical Mobile Accessories
• Smartphones
• Two-Cell Battery-Powered Devices
• Ultra-Low-Power Systems