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

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MAX49140AXK/V+ General Description

The MAX49140 is a single high-speed comparator optimized for systems powered from a 3V or 5V supply. The MAX49140 combines high speed, low power, and rail-to-rail inputs. Propagation delay is 30ns, while supply current is only 100μA (typ).

The input common-mode range of the device extends up to both power-supply rails. The output pulls to within 0.3V of either supply rail without external pullup circuitry, making the device ideal for interfacing with both CMOS and TTL logic. All input and output pins can tolerate a continuous short-circuit fault condition to either rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals.

The MAX49140 is offered in tiny, 5-pin SC70 package and is fully specified over -40°C to +125°C automotive temperature range. The device is AEC-Q100 qualified.

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Key Features

  • Fast, 30ns Propagation Delay (10mV Overdrive)
  • Low-Power 100μA Supply Current (V
  • DD
  • 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


  • 3V/5V Systems
  • Car Battery-Powered Systems
  • Line Receivers
  • Sampling Circuits
  • Threshold Detectors/Discriminators
  • Zero-Crossing Detectors


model MAX49140AXK/V+ package 5-SC70-N/A
packingQty Reel,2500 packingOption Reel
packageType X5+1C rohs roHSY
lifeCycle production tempRange -40 to 125C
Manufacturer Analog Devices Inc. Product Category Analog Comparators
RoHS Details Mounting Style SMD/SMT
Package / Case SC-70-5 Number of Channels 1 Channel
Output Type CMOS, TTL Response Time 30 ns
Comparator Type General Purpose Supply Voltage - Min 2.7 V
Supply Voltage - Max 5.5 V Operating Supply Current 100 uA
Output Current per Channel 100 nA Vos - Input Offset Voltage 500 uV
Ib - Input Bias Current 200 nA Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Series MAX49140
Brand Analog Devices / Maxim Integrated CMRR - Common Mode Rejection Ratio 50 uV/V
Input Type Rail-to-Rail Ios - Input Offset Current 20 nA
Product Analog Comparators Product Type Analog Comparators
Propagation Delay Time 30 ns PSRR - Power Supply Rejection Ratio 100 uV/V
Shutdown No Shutdown Factory Pack Quantity 10
Subcategory Amplifier ICs


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


  • Tape and Reel

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  • Cut Tape

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  • Tube or Tray

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Buying Guide

  • What is the lifespan of MAX49140AXK/V+?

    The lifespan of MAX49140AXK/V+ depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of MAX49140AXK/V+?

    You can find it with PDF Datasheet for MAX49140AXK/V+ on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of MAX49140AXK/V+?

    Avaq has separate quality services with common quality inspection equipment for testing items, you can also fill out a sample form, our team will get in touch with you within 24 HOURS.

  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

    Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.

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