MAX49140

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

Fast Comparator with Most Compact Overall Solution for Automotive Applications


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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.

MAX49140: Simplified Block Diagram MAX49140: Simplified Block Diagram Enlarge+

Key Features

  • 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

Applications/Uses

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

See parametric specs for Comparators (97)


Part NumberComparatorstPD
(ns)
Input RangeVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Comp.
(µA)
VOS
(mV)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminmaxmaxtypmaxSee Notes
MAX49140 NEW!130
Rail to Rail
to Neg. Rail
2.75.52000.55Push-Pull-40 to +125
SC70-CU/5
$0.99 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX49140EVKIT: Evaluation Kit for the MAX49140
Request Reliability Report for: MAX49140 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources


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

  • Fast, 30ns Propagation Delay (10mV Overdrive)
  • Low-Power 100μA Supply Current (VDD = 3V)
  • Optimized for 3V and 5V Applications

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