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Maxim continues to innovate with the recent introduction of low pin count comparators that do not require a separate power pin. We offer advanced products in the following categories.

Integrated Reference Comparators

These general-purpose comparators have variable speed responses and are available in different s...

High-Speed Comparators

Our high-speed comparators offer fast propagation delay and fast rise and fall times, and suppor...

Low-Power Comparators

This group of comparators includes products with low quiescent current and very small packages l...

Technical Documentation

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Technical Documentation

Technical Documents

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Featured Products

MAX49140 30ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparator

MAX49140 30ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparator

The MAX49140 is a single high-speed comparator optimized for systems powered from a 3V or 5V sup...
  • Fast, 30ns Propagation Delay (10mV Overdrive)
  • Low-Power 100μA Supply Current (VDD = 3V)
  • Optimized for 3V and 5V Applications
  • Rail-to-Rail Input Voltage Range
  • Low, 500µV Offset Voltage
  • Internal Hysteresis for Clean Switching
  • Output Swing 300mV of Power Rails
  • CMOS/TTL-Compatible Outputs
  • Small SC70 Package
  • AEC-Q100 Qualified
MAX40027 Dual 280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs

MAX40027 Dual 280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs

The MAX40027 is a single-supply, dual high-speed comparator with a typical propagation delay of ...
  • Fast Propagation Delay: 280ps, Typ
  • Low Overdrive Dispersion: 25ps (VOD = 10mV to 1V)
  • Supply Voltage 2.7V to 3.6V
  • 45.9mW at 2.7V Supply (Each Comparator)
  • Power-Efficient LVDS Outputs
  • -40°C to +125°C Temperature Range
  • Automotive AEC-Q100 Qualified 
  • Small, 3mm x 2mm TDFN Package with Side-Wettable Flanks

MAX9646 nanoPower Comparators with Precision Reference in 4-Bump UCSP

The MAX9644/MAX9645/MAX9646 are small, single comparators, ideal for a wide variety of portable ...
  • Tiny, 1mm x 1mm x 0.6mm 4-Bump UCSP
    • Footprint = Two 0402 Resistors
    • Also Available in a 5-Pin SOT23 Package
  • Ultra-Low Operating Current (700nA max)
  • -0.3V to +5.5V Input Voltage Range
  • Internal 0.2V Reference Trimmed to 1% Accuracy
  • 15µs Propagation Delay
  • -40°C to +85°C Extended Temperature Range
MAX9065 Ultra-Small, nanoPower, Window Comparator in 4 UCSP and 5 SOT23

MAX9065 Ultra-Small, nanoPower, Window Comparator in 4 UCSP and 5 SOT23

The MAX9065 is an ultra-small, low-power, window comparator ideal for a wide variety of portable...
  • Tiny 1mm x 1mm 4-Bump UCSP
    • Footprint = Two 0402 Resistors
    • Also Available in 5-Pin SOT23 Package
  • Ultra-Low Power Operating Current
    • 1µA (max)
  • -0.3V to +5.5V Input Voltage Range
  • 1.0V to 5.5V VCC Range
  • 3.0V and 4.2V Trigger Points
  • -40°C to +85°C Extended Temperature Range
MAX44269 1.3mm x 1.3mm, Low-Power Dual Comparator

MAX44269 1.3mm x 1.3mm, Low-Power Dual Comparator

The MAX44269 is an ultra-small and low-power dual comparator ideal for battery-powered applicati...
  • Ultra-Low Power Consumption
    • 0.5µA per Comparator
  • Ultra-Small 1.3mm x 1.3mm WLP Package
  • Guaranteed Operation Down to VCC = 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
MAX44268 1.3mm x 1.3mm, Low-Power Dual Comparator with Reference

MAX44268 1.3mm x 1.3mm, Low-Power Dual Comparator with Reference

The MAX44268 is an ultra-small and low-power dual comparator ideal for battery-powered applicati...
  • 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 VCC = 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

Reference Designs

MAXREFDES178 and Artificial Intelligence Applications

This document describes the cube camera development platform based on the MAX78000 and MAX32666.
MAXREFDES179# Reference Design Board

MAXREFDES179# Reference Design Board

The MAXREFDES179 reference design is a complete Universal Serial Bus (USB) type-C PD solution fe...

MAXREFDES1284: Himalaya Power Evaluation Platform

Himalaya Power Evaluation Platform provides a proven design to evaluate 12 different high-effici...

MAXREFDES105#: Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform

The MAXREFDES105# is a wrist-worn wearable reference design for heart-rate, heart-rate variabili...

MAXREFDES9004: C-source Reference for Operating the DS2485 Combined with a DS28E18 from a Cortex-M4 Microcontroller

The MAXREFDES9004 is a reference design showcasing the DS2485 features integrated with an Arm® C...

MAXREFDES1233: 1.8V/10A Core Power Supply for CPUs, Microcontrollers, FPGAs, or DDR2 Interfaces Using the MAX20710

The MAXREFDES1233 provides the internal core voltage (VCCINT) for CPUs, microcontrollers, FPGAs,...

MAXREFDES1238: Scalable, Single Input, 6 Output, Power Solution for the Versal ACAP Platform

In this design a single 12V input supplies a circuit which outputs 6 separate rails ranging from...

MAXREFDES1263: True Wireless Stereo Cradle and Earbuds

This solution demonstrates a small size, low power, high effective, high accuracy power manageme...

MAXREFDES165# Four-Channel IO-Link Master

The MAXREFDES165# is a fully IO-Link®-compliant, 4-port IO-Link master reference design. This de...

MAXREFDES1257: 24W/48V DC-DC Boost Converter Using the MAX17597 Peak-Current-Mode Controller

The MAXREFDES1257 is a DC-DC boost power supply that delivers up to 500mA at 48V from an 8V to 1...

MAXREFDES1264: Digitally Controlled Sine-Wave Generator Using the MAX32630FTHR and MAX7400

The MAXREFDES1264 is a reference design for the MAX32630FTHR and MAX7404 produces an accurate va...

MAXREFDES1253: Miniature 17V, 0.75A No Opto Flyback DC to DC Converter Using the MAX17690

The MAXREFDES1253 illustrates techniques using the No Opto Flyback converter to generate isolate...

MAXREFDES185# Configurable IO with Safety Monitoring

The MAXREFDES185# configurable IO reference design demonstrates a fully software-configurable un...

MAXREFDES1034: High-Efficiency Power Supply for TVs Using MAX17506

The MAXREFDES1034 is an auxiliary power supply for TV applications. This design provides a 5V ou...

MAXREFDES1018: Boost, Single-Output, DC-DC Converter, 1V to 3.3V Input, 13.5V/6mA Output

The MAX1606 is a step-up DC-DC converter that contains a 0.5A internal power switch and a 0.5A o...

MAXREFDES1105: Miniature, 5V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 90.4% Efficiency Using MAX17690 and MAX17606

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...
MAXREFDES1177: PoE Powered Device and 12V/600mA No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

MAXREFDES1177: PoE Powered Device and 12V/600mA No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

Power over Ethernet (PoE) is a technology that allows network cables to deliver power to a power...

MAXREFDES1142: Ultra miniature Two Layer 4A, 1.8V Step-Down DC-DC Converter with Integrated Switches Using MAX15051

The MAX15051 is a high-efficiency switching regulator that delivers up to 4A load current at out...

MAXREFDES1186: 7.5W 3.3V Offline Flyback Converter Using the MAX17595

The MAX17595 is a peak-current-mode controller for designing wide input-voltage flyback regulato...

MAXREFDES1043: How to Monitor SpO2 Levels Using the MAX30102

The MAXREFDES1043 is designed for SpO2 measurements based on Maxim’s new-generation biosensor—th...