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MAX976, MAX978, MAX998
Single/Dual/Quad, SOT23, Single-Supply, High-Speed, Low-Power Comparators


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Data Sheet
FULL DATA SHEET (PDF, 240kB)
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Description
The MAX976/MAX978/MAX998 dual/quad/single, highspeed, low-power comparators are optimized for +3V/+5V single-supply applications. They achieve a 20ns propagation delay while consuming only 225µA supply current per comparator. The MAX998 features a low-power shutdown mode that places the output in a high-impedance state and reduces supply current to 1nA.

The MAX976/MAX978/MAX998 inputs have a commonmode voltage range that extends 200mV below ground. Their outputs are capable of rail-to-rail operation without external pullup circuitry, making these devices ideal for interface with CMOS/TTL logic. All inputs and outputs can tolerate a continuous short-circuit fault condition to either rail. The comparators' internal hysteresis ensures clean output switching, even with slow-moving input signals.

For space-critical applications, the single MAX998 is available in a 6-pin SOT23 package, the dual MAX976 is available in an 8-pin µMAX® package, and the quad MAX978 is available in a 16-pin QSOP package.

Key Features   Applications/Uses
  • Single-Supply Operation Down to 2.7V
  • 20ns Propagation Delay
  • 225µA Supply Current
  • 1nA Shutdown Supply Current
  • Rail-to-Rail Outputs
  • Ground-Sensing Inputs
  • Internal Hysteresis Ensures Clean Switching
  • Available in Space-Saving Packages
    • SOT23-6 (MAX998)
    • µMAX (MAX976)
    • QSOP-16 (MAX978)

 
  • 3V Systems
  • Battery-Powered Applications
  • Digital-Line Receivers
  • IR Receivers
  • Threshold Detectors/Discriminators

    Key Specifications:   Comparators
    Part Number Number per Pkg. Typ Prop. Delay (ns) Input CMVR to Neg. Rail Min. Total Supply (V) Max. Total Supply (V) Max. Supply Current per Comp. (µA) Shutdown Typ VOS (mV) Logic Output Latched Outputs Complementary Outputs Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX976  2 20 Yes 2.7 5.5 650 No 0.2 CMOS
    TTL
    No No SOIC/8
    uMAX/8
    16 -40 to +85 $2.05 @ 1k
    MAX978  4 No QSOP/16
    SOIC/16
    31 $3.10 @ 1k
    MAX998  1 Yes SOIC/8
    SOT-23/6
    9 $1.70 @ 1k
    See All Comparators (81)
    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 prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX976, MAX978, MAX998: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 886: Selecting the Right Comparator - MAX998
  • Application Note 1792: Self-Oscillating Contactor Driver Minimizes Hold Power - MAX998

    Evaluation Kits
    none

    Design Guides
  • AMPLIFIERS/COMPARATORS (PDF)
  • VIDEO (PDF)

    Reliability Reports
  • Show FIT data for:
  • Reliability Report: MAX976ExA.pdf MAX998Exx.pdf
  • Request Reliability Report for:

    Software/Models
  • MAX976 Macromodel
  • MAX976PD Test Circuit File

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-24 of 24

    MAX976 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX976ESA  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX976ESA+T  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX976ESA+  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX976ESA-T  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX976EUA+T  
    uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX976EUA+  
    uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX976EUA-T  
    uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX976EUA  
    uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX978 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX978EEE+  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16M+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX978EEE  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX978EEE-T  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX978EEE+T  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16M+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX978ESE-T  
    SOIC;16 pin;62 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S16M-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX978ESE+  
    SOIC;16 pin;62 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S16M+3*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX978ESE+T  
    SOIC;16 pin;62 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S16M+3*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX978ESE  
    SOIC;16 pin;62 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S16M-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX998 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX998ESA+T  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX998ESA+  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX998ESA  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX998ESA-T  
    SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX998EUT+  
    SOT-23;6 pin;9 mm²
    Dwg: 21-0058I (PDF)
    Use pkgcode/variation: U6+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX998EUT  
    SOT-23;6 pin;9 mm²
    Dwg: 21-0058I (PDF)
    Use pkgcode/variation: U6-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX998EUT+T  
    SOT-23;6 pin;9 mm²
    Dwg: 21-0058I (PDF)
    Use pkgcode/variation: U6+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX998EUT-T  
    SOT-23;6 pin;9 mm²
    Dwg: 21-0058I (PDF)
    Use pkgcode/variation: U6-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    Notes and Comments
    • Dual, ground sensing, rail-to-rail output (MAX976)
    • Quad, ground sensing, rail-to-rail output (MAX978)
    • Single, ground sensing, rail-to-rail output, with shutdown (MAX998)

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    Document Ref.: 19-1299; Rev 2; 2007-02-09
    This page last modified: 2007-06-05




             


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