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MAX941, MAX942, MAX944
高速、低功耗、3V/5V、满摆幅、单电源比较器


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概述
完整的数据资料 (PDF, 276kB)
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The MAX941/MAX942/MAX944 are single/dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply. These devices combine high speed, low power, and rail-to-rail inputs. Propagation delay is 80ns, while supply current is only 350µA per comparator.

The input common-mode range of the MAX941/MAX942/MAX944 extends beyond both power-supply rails. The outputs pull to within 0.4V of either supply rail without external pullup circuitry, making these devices ideal for interface 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 MAX941 features latch enable and device shutdown.

The single MAX941 and dual MAX942 are offered in a tiny µMAX® package. Both the single and dual MAX942 are available in 8-pin DIP and SO packages. The quad MAX944 comes in 14-pin DIP and narrow SO packages.

关键特性   应用/使用
  • Available in µMAX Package for Automotive Applications
  • Optimized for 3V and 5V Applications (Operation Down to 2.7V)
  • Fast, 80ns Propagation Delay (5mV Overdrive)
  • Rail-to-Rail Input Voltage Range
  • Low 350µA Supply Current per Comparator
  • Low, 1mV Offset Voltage
  • Internal Hysteresis for Clean Switching
  • Outputs Swing 200mV of Power Rails
  • CMOS/TTL-Compatible Outputs
  • Output Latch (MAX941 Only)
  • Shutdown Function (MAX941 Only)

 
  • 3V/5V系统
  • 电池供电系统
  • 线接收器
  • 采样电路
  • 门限检测器/鉴别器
  • 过零检测器

    Key Specifications:  Comparators
    Part Number Comp-
    arators
    tPD
    (ns)
    VCMVR Rail to Rail Input VSUPPLY (Total)
    (V)
    VSUPPLY (Total)
    (V)
    ICC per Comp.
    (µA)
    VOS
    (mV)
    VOS
    (mV)
    Logic Out Package/Pins Smallest Available Pckg.
    (mm2)
    Oper. Temp.
    (°C)
    Price
    typ to Neg. Rail min max max typ max max w/pins See Notes
    MAX941  1 80 Yes Yes 2.7 5.5 600 1 4
    CMOS
    TTL
    µMAX/8
    CDIP(N)/8
    PDIP(N)/8
    SOIC(N)/8
    16
    -55 to +125
    -40 to +85
    0 to +70
    $1.40 @1k
    MAX942  2 500
    µMAX/8
    PDIP(N)/8
    SOIC(N)/8
    16 $1.50 @1k
    MAX944  4 500
    CDIP(N)/14
    PDIP(N)/14
    SOIC(N)/14
    54 $2.50 @1k
    查看所有Comparators (83)

    图表
    MAX941、MAX942、MAX944:引脚配置
    引脚配置

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    参考文献: 19-0229; Rev. 8; 2008-12-15
    本页最后一次更新: 2009-11-10


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