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/content/maximintegrated/en/products/analog/comparators 
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.
Technical Documentation
Featured Products
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
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
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
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
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
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
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
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
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
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
MAXREFDES1263: True Wireless Stereo Cradle and Earbuds
This solution demonstrates a small size, low power, high effective, high accuracy power manageme...
MAXREFDES1244:Miniature, 5V,1.2A, No-Opto Flyback DC to DC Converter Using the MAX17690
The MAXREFDES1244 illustrates technique using the No Opto Flyback converter to generate isolated...
Remote Monitoring System Sends Email via SMS
Remote monitoring of temperature and an analogue signal via E-mails. On meeting certain alarm co...
MAXREFDES96#: Single-Battery Charger and Fuel Gauge with Boost for Arduino Platforms
The MAXREFDES96# is an Arduino Uno R3-compatible board that provides battery charge, boost, and ...
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...
MAXREFDES1244:Miniature, 5V,1.2A, No-Opto Flyback DC to DC Converter Using the MAX17690
The MAXREFDES1244 illustrates technique using the No Opto Flyback converter to generate isolated...
Remote Monitoring System Sends Email via SMS
Remote monitoring of temperature and an analogue signal via E-mails. On meeting certain alarm co...
MAXREFDES96#: Single-Battery Charger and Fuel Gauge with Boost for Arduino Platforms
The MAXREFDES96# is an Arduino Uno R3-compatible board that provides battery charge, boost, and ...
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...
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