Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators

188ns, Micropower Comparator Family Features Single Supply with Shutdown Mode in SC70-6 Package

Please check latest availability status for a specific part variant.


The MAX9030/MAX9031/MAX9032/MAX9034 single/dual/quad comparators are optimized for single-supply applications from +2.5V to +5.5V but can also be operated from dual supplies. These comparators have a 188ns propagation delay and consume 35µA of supply current per comparator over the -40°C to +125°C operating temperature range. The combination of low-power, single-supply operation down to +2.5V, and ultra-small footprint makes these devices ideal for portable applications.

The MAX9030 is a low-cost single comparator with shutdown. The MAX9031, MAX9032, and MAX9034 are low-cost single, dual, and quad comparators without shutdown, respectively. The comparators' 4mV of built-in hysteresis provides noise immunity and prevents oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator output stage substantially reduces switching current during output transitions, virtually eliminating power-supply glitches.

The MAX9030 single comparator with shutdown is available in the space-saving 6-pin SC70 and SOT23 packages. The MAX9031 single comparator is available in tiny 5-pin SC70 and SOT23 packages. The MAX9032 dual comparator is available in 8-pin SOT23 and µMAX® packages, and the MAX9034 quad comparator is available in a 14-pin TSSOP package.
MAX9030, MAX9031, MAX9032, MAX9034: Typical Application Circuit MAX9030, MAX9031, MAX9032, MAX9034: Typical Application Circuit Enlarge+

Key Features

  • Low-Cost Solution Available in Space-Saving SC70 Packages (MAX9030/MAX9031)
  • +2.5 to +5.5V Single-Supply Voltage Range
  • Comparator Output Swings Rail-to-Rail
  • Internal 4mV Comparator Hysteresis
  • 188ns Propagation Delay
  • Low 35µA Supply Current
  • No Phase Reversal for Overdriven Inputs
  • Space-Saving Packages
    • 5-Pin SC70 (MAX9031)
    • 6-Pin SC70 (MAX9030)
    • 8-Pin SOT23 (MAX9032)
    • 14-Pin TSSOP (MAX9034)


  • Battery-Powered Portable Systems
  • Digital Line Receivers
  • Keyless Entry Systems
  • Mobile Communications
  • Photodiode Preamps
  • Sensor Signal Detection
  • Threshold Detectors/Discriminators

See parametric specs for Comparators (96)

Part NumberComp-
Input RangeVSUPPLY (Total)
ICC per Comp.
Logic OutOper. Temp.
typminmaxmaxtypmaxSee Notes
MAX9030 1188to Neg. Rail2.55.55515Push-Pull-40 to +125
$0.34 @1k
MAX9031 1
$0.43 @1k
MAX9032 2
SOIC (N)/8
$0.58 @1k
MAX9034 4
SOIC (N)/14
$0.80 @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.
Product Reliability Reports: MAX9030.pdf 
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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